Mathway | Popular Problems

Popular Problems

Rank	Topic	Problem	Formatted Problem
153401	Find the LCD	1/(x^2-3x-28) , x/(x^2+6x+8)	$\frac{1}{x^{2} - 3 x - 28}$ , $\frac{x}{x^{2} + 6 x + 8}$
153402	Find the LCD	1/4 , 5/16 , 3/8	$\frac{1}{4}$ , $\frac{5}{16}$ , $\frac{3}{8}$
153403	Find the LCD	1/4 , 5/8	$\frac{1}{4}$ , $\frac{5}{8}$
153404	Find the LCD	1/3 , 1/4	$\frac{1}{3}$ , $\frac{1}{4}$
153405	Find the LCD	1/(3x^2) , 9/(15x^4)	$\frac{1}{3 x^{2}}$ , $\frac{9}{15 x^{4}}$
153406	Find the LCD	1/4 , 1/6	$\frac{1}{4}$ , $\frac{1}{6}$
153407	Find the LCD	1/(5x+9) , 6/x	$\frac{1}{5 x + 9}$ , $\frac{6}{x}$
153408	Find the LCD	5/(3x^2y) , 4/(6xy^3)	$\frac{5}{3 x^{2} y}$ , $\frac{4}{6 x y^{3}}$
153409	Find the LCD	-5/(3y) , 15/(5y)	$- \frac{5}{3 y}$ , $\frac{15}{5 y}$
153410	Find the LCD	(4x+1)/(x^2+3x-4) , (7x)/(x^2+2x-3)	$\frac{4 x + 1}{x^{2} + 3 x - 4}$ , $\frac{7 x}{x^{2} + 2 x - 3}$
153411	Find the LCD	(4x-5)/(x^2-4x-5) , (4x+1)/(x^2-25)	$\frac{4 x - 5}{x^{2} - 4 x - 5}$ , $\frac{4 x + 1}{x^{2} - 25}$
153412	Find the LCD	4/5 , 20/25	$\frac{4}{5}$ , $\frac{20}{25}$
153413	Find the LCD	4/(c-3) , c/(c+1)	$\frac{4}{c - 3}$ , $\frac{c}{c + 1}$
153414	Find the LCD	4/15 , 5/12	$\frac{4}{15}$ , $\frac{5}{12}$
153415	Find the LCD	4/(7x^5t) , 11/(343xt^5)	$\frac{4}{7 x^{5} t}$ , $\frac{11}{343 x t^{5}}$
153416	Find the LCD	(5x-1)/(5x(2x+1)) , 2/(9x^3)	$\frac{5 x - 1}{5 x (2 x + 1)}$ , $\frac{2}{9 x^{3}}$
153417	Find the LCD	6/(5p^2q) ; p/(25q)	$\frac{6}{5 p^{2} q}$ ; $\frac{p}{25 q}$
153418	Find the LCD	(5a)/(a-3) , (3a)/(a+2)	$\frac{5 a}{a - 3}$ , $\frac{3 a}{a + 2}$
153419	Find the LCD	(6x+1)/(x^2+5x-6) , (5x)/(x^2+4x-5)	$\frac{6 x + 1}{x^{2} + 5 x - 6}$ , $\frac{5 x}{x^{2} + 4 x - 5}$
153420	Find the LCD	5/(8-2x) , 3/(x^2-16)	$\frac{5}{8 - 2 x}$ , $\frac{3}{x^{2} - 16}$
153421	Find the LCD	5/m , 3/n	$\frac{5}{m}$ , $\frac{3}{n}$
153422	Find the LCD	5/(n-3) ; 2/(n+7)	$\frac{5}{n - 3}$ ; $\frac{2}{n + 7}$
153423	Find the LCD	5/x , 4/(8x+5)	$\frac{5}{x}$ , $\frac{4}{8 x + 5}$
153424	Find the LCD	3/(15h) , 1/(10h)	$\frac{3}{15 h}$ , $\frac{1}{10 h}$
153425	Find the LCD	3/(3z+21) , 7/(z^2+15z+56)	$\frac{3}{3 z + 21}$ , $\frac{7}{z^{2} + 15 z + 56}$
153426	Find the LCD	3/(3z+27) , 7/(z^2+11z+18)	$\frac{3}{3 z + 27}$ , $\frac{7}{z^{2} + 11 z + 18}$
153427	Find the LCD	3/20 , 11/8	$\frac{3}{20}$ , $\frac{11}{8}$
153428	Find the LCD	3/(4x^3y) , 2/(5xy^2)	$\frac{3}{4 x^{3} y}$ , $\frac{2}{5 x y^{2}}$
153429	Find the LCD	-3/(7y) , 21/(3y)	$- \frac{3}{7 y}$ , $\frac{21}{3 y}$
153430	Find the LCD	2/(y^2-4) , y/(y^2-4y+4)	$\frac{2}{y^{2} - 4}$ , $\frac{y}{y^{2} - 4 y + 4}$
153431	Find the LCD	2/(3m^2n) , 7/(mn^2)	$\frac{2}{3 m^{2} n}$ , $\frac{7}{m n^{2}}$
153432	Find the LCD	3/10 , 4/15	$\frac{3}{10}$ , $\frac{4}{15}$
153433	Find the LCD	11/8 , 1/12	$\frac{11}{8}$ , $\frac{1}{12}$
153434	Find the LCD	13/(35r^5) , 7/(20r^3)	$\frac{13}{35 r^{5}}$ , $\frac{7}{20 r^{3}}$
153435	Find the LCD	2/(ab) ; (a-b)/(b^2c)	$\frac{2}{a b}$ ; $\frac{a - b}{b^{2} c}$
153436	Find the LCD	2/(b+8) ; 6/(b-3)	$\frac{2}{b + 8}$ ; $\frac{6}{b - 3}$
153437	Find the LCD	2/(m+n) ; 7/(-m-n)	$\frac{2}{m + n}$ ; $\frac{7}{- m - n}$
153438	Find the LCD	2/u , 5u	$\frac{2}{u}$ , $5 u$
153439	Find the Probability Using the Z-Score	p(z)<0.97	$p (z) < 0.97$
153440	Find the Probability Using the Z-Score	P(z)>1	$P (z) > 1$
153441	Find the Range	-\|x-4\|+5	$- \| x - 4 \| + 5$
153442	Determine the Nature of the Roots Using the Discriminant	5x^2-4x+1=0	$5 x^{2} - 4 x + 1 = 0$
153443	Determine the Nature of the Roots Using the Discriminant	5x^2-7x+1=0	$5 x^{2} - 7 x + 1 = 0$
153444	Determine the Nature of the Roots Using the Discriminant	6x^2-7x+4=0	$6 x^{2} - 7 x + 4 = 0$
153445	Determine the Nature of the Roots Using the Discriminant	7x^2+10x+3=0	$7 x^{2} + 10 x + 3 = 0$
153446	Determine the Nature of the Roots Using the Discriminant	-7x^2+6x+3=0	$- 7 x^{2} + 6 x + 3 = 0$
153447	Determine the Nature of the Roots Using the Discriminant	9x^2-2x+1=0	$9 x^{2} - 2 x + 1 = 0$
153448	Determine the Nature of the Roots Using the Discriminant	w^2+4w+5=0	$w^{2} + 4 w + 5 = 0$
153449	Determine the Nature of the Roots Using the Discriminant	8x^2-4x+1=0	$8 x^{2} - 4 x + 1 = 0$
153450	Determine the Nature of the Roots Using the Discriminant	x^2+14x-49=0	$x^{2} + 14 x - 49 = 0$
153451	Determine the Nature of the Roots Using the Discriminant	x^2+12x+35=0	$x^{2} + 12 x + 35 = 0$
153452	Determine the Nature of the Roots Using the Discriminant	-4j^2+3j-28=0	$- 4 j^{2} + 3 j - 28 = 0$
153453	Determine the Nature of the Roots Using the Discriminant	4x^2+11x+7=0	$4 x^{2} + 11 x + 7 = 0$
153454	Determine the Nature of the Roots Using the Discriminant	-3x^2-6x=-4	$- 3 x^{2} - 6 x = - 4$
153455	Determine the Nature of the Roots Using the Discriminant	4x^2+x+5=0	$4 x^{2} + x + 5 = 0$
153456	Determine the Nature of the Roots Using the Discriminant	4x^2+x-3=0	$4 x^{2} + x - 3 = 0$
153457	Determine the Nature of the Roots Using the Discriminant	4x^2+x-5=0	$4 x^{2} + x - 5 = 0$
153458	Determine the Nature of the Roots Using the Discriminant	-3x^2+6x-3=0	$- 3 x^{2} + 6 x - 3 = 0$
153459	Determine the Nature of the Roots Using the Discriminant	3x^2+4x-2=0	$3 x^{2} + 4 x - 2 = 0$
153460	Determine the Nature of the Roots Using the Discriminant	3x^2+9x+6=0	$3 x^{2} + 9 x + 6 = 0$
153461	Determine the Nature of the Roots Using the Discriminant	2x^2-x+6=0	$2 x^{2} - x + 6 = 0$
153462	Determine the Nature of the Roots Using the Discriminant	3x^2+42x+237=0	$3 x^{2} + 42 x + 237 = 0$
153463	Determine the Nature of the Roots Using the Discriminant	3x^2+18x+27=0	$3 x^{2} + 18 x + 27 = 0$
153464	Determine the Nature of the Roots Using the Discriminant	3x^2+2x-3=0	$3 x^{2} + 2 x - 3 = 0$
153465	Determine the Nature of the Roots Using the Discriminant	2x^2-6x+5=0	$2 x^{2} - 6 x + 5 = 0$
153466	Determine the Nature of the Roots Using the Discriminant	2x^2-4x+9=0	$2 x^{2} - 4 x + 9 = 0$
153467	Determine the Nature of the Roots Using the Discriminant	2x^2-5x+4=0	$2 x^{2} - 5 x + 4 = 0$
153468	Determine the Nature of the Roots Using the Discriminant	2x^2+7x-4=0	$2 x^{2} + 7 x - 4 = 0$
153469	Determine the Nature of the Roots Using the Discriminant	2x^2+7x-15=0	$2 x^{2} + 7 x - 15 = 0$
153470	Determine the Nature of the Roots Using the Discriminant	16x^2-32x+16=0	$16 x^{2} - 32 x + 16 = 0$
153471	Determine the Nature of the Roots Using the Discriminant	2x^2+4x-5=0	$2 x^{2} + 4 x - 5 = 0$
153472	Determine the Nature of the Roots Using the Discriminant	2x^2+2x-4=0	$2 x^{2} + 2 x - 4 = 0$
153473	Determine the Nature of the Roots Using the Discriminant	x^2+6x-55=0	$x^{2} + 6 x - 55 = 0$
153474	Determine the Nature of the Roots Using the Discriminant	x^2+2x-8=0	$x^{2} + 2 x - 8 = 0$
153475	Determine the Nature of the Roots Using the Discriminant	x^2-2x-6=0	$x^{2} - 2 x - 6 = 0$
153476	Determine the Nature of the Roots Using the Discriminant	x^2-3x-5=0	$x^{2} - 3 x - 5 = 0$
153477	Determine the Nature of the Roots Using the Discriminant	x^2-13x+42=0	$x^{2} - 13 x + 42 = 0$
153478	Determine the Nature of the Roots Using the Discriminant	x^2-5x-6=0	$x^{2} - 5 x - 6 = 0$
153479	Determine the Nature of the Roots Using the Discriminant	x^2-6x+10=0	$x^{2} - 6 x + 10 = 0$
153480	Determine the Nature of the Roots Using the Discriminant	x^2-6x-4=0	$x^{2} - 6 x - 4 = 0$
153481	Expand Using Sum/Difference Formulas	cos((4pi)/15)cos(pi/60)+sin((4pi)/15)sin(pi/60)	$\cos (\frac{4 π}{15}) \cos (\frac{π}{60}) + \sin (\frac{4 π}{15}) \sin (\frac{π}{60})$
153482	Expand Using Sum/Difference Formulas	cos((5pi)/7)cos((23pi)/42)+sin((5pi)/7)sin((23pi)/42)	$\cos (\frac{5 π}{7}) \cos (\frac{23 π}{42}) + \sin (\frac{5 π}{7}) \sin (\frac{23 π}{42})$
153483	Expand Using Sum/Difference Formulas	cos((7pi)/15)cos((11pi)/30)-sin((7pi)/15)sin((11pi)/30)	$\cos (\frac{7 π}{15}) \cos (\frac{11 π}{30}) - \sin (\frac{7 π}{15}) \sin (\frac{11 π}{30})$
153484	Expand Using Sum/Difference Formulas	cos((3pi)/7)cos((9pi)/28)-sin((3pi)/7)sin((9pi)/28)	$\cos (\frac{3 π}{7}) \cos (\frac{9 π}{28}) - \sin (\frac{3 π}{7}) \sin (\frac{9 π}{28})$
153485	Expand Using Sum/Difference Formulas	cos((19pi)/42)cos((2pi)/7)+sin((19pi)/42)sin((2pi)/7)	$\cos (\frac{19 π}{42}) \cos (\frac{2 π}{7}) + \sin (\frac{19 π}{42}) \sin (\frac{2 π}{7})$
153486	Expand Using Sum/Difference Formulas	sin((6pi)/7)cos((29pi)/42)-cos((6pi)/7)sin((29pi)/42)	$\sin (\frac{6 π}{7}) \cos (\frac{29 π}{42}) - \cos (\frac{6 π}{7}) \sin (\frac{29 π}{42})$
153487	Expand Using Sum/Difference Formulas	sin((16pi)/21)cos((3pi)/7)-cos((16pi)/21)sin((3pi)/7)	$\sin (\frac{16 π}{21}) \cos (\frac{3 π}{7}) - \cos (\frac{16 π}{21}) \sin (\frac{3 π}{7})$
153488	Expand Using Sum/Difference Formulas	sin((17pi)/28)cos(pi/7)+cos((17pi)/28)sin(pi/7)	$\sin (\frac{17 π}{28}) \cos (\frac{π}{7}) + \cos (\frac{17 π}{28}) \sin (\frac{π}{7})$
153489	Identify the Conic	(y-4)^2=9(x-4)	${(y - 4)}^{2} = 9 (x - 4)$
153490	Identify the Conic	16x^2+36y^2-256x+448=0	$16 x^{2} + 36 y^{2} - 256 x + 448 = 0$
153491	Identify the Conic	16x^2+9y^2+64x-18y-71=0	$16 x^{2} + 9 y^{2} + 64 x - 18 y - 71 = 0$
153492	Identify the Conic	16x^2=64-y^2	$16 x^{2} = 64 - y^{2}$
153493	Identify the Conic	16x^2-16y^2=64	$16 x^{2} - 16 y^{2} = 64$
153494	Identify the Conic	25x^2+16y^2=400	$25 x^{2} + 16 y^{2} = 400$
153495	Identify the Conic	16x^2-4y^2=64	$16 x^{2} - 4 y^{2} = 64$
153496	Identify the Conic	16x^2-96x+25y^2-256=0	$16 x^{2} - 96 x + 25 y^{2} - 256 = 0$
153497	Identify the Conic	25x^2-16y^2-50x-375=0	$25 x^{2} - 16 y^{2} - 50 x - 375 = 0$
153498	Identify the Conic	4x^2-25y^2+50y-125=0	$4 x^{2} - 25 y^{2} + 50 y - 125 = 0$
153499	Identify the Conic	4x^2+9y^2-24x-36y+36=0	$4 x^{2} + 9 y^{2} - 24 x - 36 y + 36 = 0$
153500	Identify the Conic	5x^2+30x+4y^2-16y+45=0	$5 x^{2} + 30 x + 4 y^{2} - 16 y + 45 = 0$