Mathway | Popular Problems

Popular Problems

Rank	Topic	Problem	Formatted Problem
19101	Solve for x	0=cos(x+pi/4)	$0 = \cos (x + \frac{π}{4})$
19102	Solve for x	0=sin(2x)	$0 = \sin (2 x)$
19103	Solve for x	0=80-32x	$0 = 80 - 32 x$
19104	Solve for x	0=6x^2-576x+7776	$0 = 6 x^{2} - 576 x + 7776$
19105	Solve for x	0=6x-16	$0 = 6 x - 16$
19106	Solve for x	0=8-72/(x^2)	$0 = 8 - \frac{72}{x^{2}}$
19107	Solve for x	1-1/50x^2=0	$1 - \frac{1}{50} x^{2} = 0$
19108	Solve for x	1-1/60x^2=0	$1 - \frac{1}{60} x^{2} = 0$
19109	Solve for x	1-1/(3/x)=7/5	$1 - \frac{1}{\frac{3}{x}} = \frac{7}{5}$
19110	Solve for x	1-9/(x^2)=0	$1 - \frac{9}{x^{2}} = 0$
19111	Solve for x	-1.0x+55=0	$- 1 x + 55 = 0$
19112	Solve for x	1.57sin(33.5)=1.33sin(x)	$1.57 \sin (33.5) = 1.33 \sin (x)$
19113	Solve for x	45=6(x^2+30000)^(1/3)-160	$45 = 6 {(x^{2} + 30000)}^{\frac{1}{3}} - 160$
19114	Solve for x	450=((890+72)/9.81)(9.81+x)	$450 = (\frac{890 + 72}{9.81}) (9.81 + x)$
19115	Solve for x	-48x^-3+6=0	$- 48 x^{- 3} + 6 = 0$
19116	Solve for x	49e^x-7e^(2x)=0	$49 e^{x} - 7 e^{2 x} = 0$
19117	Solve for x	4 natural log of x=-12	$4 \ln (x) = - 12$
19118	Solve for x	-4sin(4x)=0	$- 4 \sin (4 x) = 0$
19119	Solve for x	4x^3-6x=0	$4 x^{3} - 6 x = 0$
19120	Solve for x	42+3e^((3x)/2)=965	$42 + 3 e^{\frac{3 x}{2}} = 965$
19121	Solve for x	4x^3-8x=0	$4 x^{3} - 8 x = 0$
19122	Solve for x	4=(x-7)^2	$4 = {(x - 7)}^{2}$
19123	Solve for x	4 square root of 0.5x+4+2.8x-8+33.365-(x+180)^1.05=0	$4 \sqrt{0.5 x + 4} + 2.8 x - 8 + 33.365 - {(x + 180)}^{1.05} = 0$
19124	Solve for x	4.90=4.74+ log of x/0.100	$4.9 = 4.74 + \log (\frac{x}{0.1})$
19125	Solve for x	4.5x^2-3x+12=0	$4.5 x^{2} - 3 x + 12 = 0$
19126	Solve for x	3x=3x^2-24	$3 x = 3 x^{2} - 24$
19127	Solve for x	4(2x-1)-5=59	$4 (2 x - 1) - 5 = 59$
19128	Solve for x	4x^2-9x+5=0	$4 x^{2} - 9 x + 5 = 0$
19129	Solve for x	4e^(4x)-e^(-x)=0	$4 e^{4 x} - e^{- x} = 0$
19130	Solve for x	4x^3-100x=0	$4 x^{3} - 100 x = 0$
19131	Solve for x	4x^3-12x=0	$4 x^{3} - 12 x = 0$
19132	Solve for x	4x^3-18x=0	$4 x^{3} - 18 x = 0$
19133	Solve for x	4(2-3x)=-2x-27	$4 (2 - 3 x) = - 2 x - 27$
19134	Solve for x	4x^3+2x-14=0	$4 x^{3} + 2 x - 14 = 0$
19135	Solve for x	4x^3+2x-16=0	$4 x^{3} + 2 x - 16 = 0$
19136	Solve for x	-4x^3+36x=0	$- 4 x^{3} + 36 x = 0$
19137	Solve for x	-4x^2-y^2+6x+2y-y+16-10x-27+3y+5-3y^2+5x^2-y^2=9-6y^2-4y-30+10x+17+y-3y-60	$- 4 x^{2} - y^{2} + 6 x + 2 y - y + 16 - 10 x - 27 + 3 y + 5 - 3 y^{2} + 5 x^{2} - y^{2} = 9 - 6 y^{2} - 4 y - 30 + 10 x + 17 + y - 3 y - 60$
19138	Solve for x	5(1+10^(6x))=9	$5 (1 + 10^{6 x}) = 9$
19139	Solve for x	5-900/(x^2)=0	$5 - \frac{900}{x^{2}} = 0$
19140	Solve for x	-4x-12=0	$- 4 x - 12 = 0$
19141	Solve for x	4x+5(5x-39)=153	$4 x + 5 (5 x - 39) = 153$
19142	Solve for x	4x-3y-1=0	$4 x - 3 y - 1 = 0$
19143	Solve for x	-4x-7+9=-38	$- 4 x - 7 + 9 = - 38$
19144	Solve for x	4xy+ natural log of x^2y=2	$4 x y + \ln (x^{2} y) = 2$
19145	Solve for x	50x^4-80x^3+30x^2=0	$50 x^{4} - 80 x^{3} + 30 x^{2} = 0$
19146	Solve for x	500e^(4x)=3500	$500 e^{4 x} = 3500$
19147	Solve for x	50-6x^2=0	$50 - 6 x^{2} = 0$
19148	Solve for x	4x+3y-2=0	$4 x + 3 y - 2 = 0$
19149	Solve for x	5x^4-5=0	$5 x^{4} - 5 = 0$
19150	Solve for x	54=20+0.1x+0.0003x^2	$54 = 20 + 0.1 x + 0.0003 x^{2}$
19151	Solve for x	5-5sin(x)=0	$5 - 5 \sin (x) = 0$
19152	Solve for x	56-2x=0	$56 - 2 x = 0$
19153	Solve for x	5cos(5x)=0	$5 \cos (5 x) = 0$
19154	Solve for x	5x(4-x)-1/2-6 square root of 4-x=0	$5 x (4 - x) - \frac{1}{2} - 6 \sqrt{4 - x} = 0$
19155	Solve for x	6(x+2)(x-1)=0	$6 (x + 2) (x - 1) = 0$
19156	Solve for x	3x^2+12x+9=0	$3 x^{2} + 12 x + 9 = 0$
19157	Evaluate the Limit	limit as x approaches -5 of (\|x+5\|)/(x+5)	$lim_{x \to - 5} \frac{\| x + 5 \|}{x + 5}$
19158	Solve for x	3x^2+12x-63=0	$3 x^{2} + 12 x - 63 = 0$
19159	Solve for x	3e^x-2=0	$3 e^{x} - 2 = 0$
19160	Solve for x	3x^2(x+8)^6+6x^3(x+8)^5=0	$3 x^{2} {(x + 8)}^{6} + 6 x^{3} {(x + 8)}^{5} = 0$
19161	Find the Local Maxima and Minima	y=x^4-6x^2	$y = x^{4} - 6 x^{2}$
19162	Solve for x	3x^2+12x+12=0	$3 x^{2} + 12 x + 12 = 0$
19163	Solve for x	3x^2+12x+17=5	$3 x^{2} + 12 x + 17 = 5$
19164	Solve for x	3x^2+2x=0	$3 x^{2} + 2 x = 0$
19165	Solve for x	-3x^2+27=0	$- 3 x^{2} + 27 = 0$
19166	Solve for x	3x^2+6x-9=0	$3 x^{2} + 6 x - 9 = 0$
19167	Solve for x	2x-y+1=0	$2 x - y + 1 = 0$
19168	Solve for x	3(2^(x-1))=8	$3 (2^{x - 1}) = 8$
19169	Solve for x	3-30000/(x^2)=0	$3 - \frac{30000}{x^{2}} = 0$
19170	Solve for x	3e^(5x)=132	$3 e^{5 x} = 132$
19171	Solve for x	2x+4/(3 cube root of x)=0	$2 x + \frac{4}{3 \sqrt[3]{x}} = 0$
19172	Solve for x	2x-6=-2x+4(x-2)	$2 x - 6 = - 2 x + 4 (x - 2)$
19173	Solve for x	-2x-1+yi=3x-5i	$- 2 x - 1 + y i = 3 x - 5 i$
19174	Solve for x	2x-12 square root of x=0	$2 x - 12 \sqrt{x} = 0$
19175	Solve for x	-2x+18/x=0	$- 2 x + \frac{18}{x} = 0$
19176	Solve for x	2x+250/(x^2)=0	$2 x + \frac{250}{x^{2}} = 0$
19177	Solve for x	2x+(3456/x)=0	$2 x + (\frac{3456}{x}) = 0$
19178	Solve for x	2x+5y=1800	$2 x + 5 y = 1800$
19179	Solve for x	3x^2-24x+48=0	$3 x^{2} - 24 x + 48 = 0$
19180	Solve for x	3x^2-16x-20=0	$3 x^{2} - 16 x - 20 = 0$
19181	Solve for x	3x^2-24x-60=0	$3 x^{2} - 24 x - 60 = 0$
19182	Solve for x	3x^2-2x=0	$3 x^{2} - 2 x = 0$
19183	Solve for x	3x^2-4x-15=0	$3 x^{2} - 4 x - 15 = 0$
19184	Solve for x	3x^2-4=0	$3 x^{2} - 4 = 0$
19185	Solve for x	3x^2-10x+4=0	$3 x^{2} - 10 x + 4 = 0$
19186	Solve for x	3x^2-10x+7=0	$3 x^{2} - 10 x + 7 = 0$
19187	Solve for x	3x^2-16x+4=0	$3 x^{2} - 16 x + 4 = 0$
19188	Solve for x	3x^2-16x-12=0	$3 x^{2} - 16 x - 12 = 0$
19189	Solve for x	3x^2-18x+15=0	$3 x^{2} - 18 x + 15 = 0$
19190	Simplify	natural log of x	$\ln (x)$
19191	Solve for x	30=6(x^2+27000)^(1/3)-200	$30 = 6 {(x^{2} + 27000)}^{\frac{1}{3}} - 200$
19192	Solve for x	2sin(x)cos(x)-sin(2x)cos(2x)=0	$2 \sin (x) \cos (x) - \sin (2 x) \cos (2 x) = 0$
19193	Solve for x	3x^2-6x-45=0	$3 x^{2} - 6 x - 45 = 0$
19194	Solve for x	3-3 natural log of x=0	$3 - 3 \ln (x) = 0$
19195	Solve for x	36x^2-24x=0	$36 x^{2} - 24 x = 0$
19196	Solve for x	36x^2-54x-36=0	$36 x^{2} - 54 x - 36 = 0$
19197	Solve for x	-32x=0	$- 32 x = 0$
19198	Solve for x	36x-9/2x^2=0	$36 x - \frac{9}{2} x^{2} = 0$
19199	Solve for x	3cos(x)-3sin(x)=0	$3 \cos (x) - 3 \sin (x) = 0$
19200	Solve for x	3x+8=7	$3 x + 8 = 7$