Mathway | Popular Problems

Popular Problems

Rank	Topic	Problem	Formatted Problem
18901	Solve for x	y=e^x(x-1)^2	$y = e^{x} {(x - 1)}^{2}$
18902	Solve for x	y = natural log of ((x^2)/(5x^4-1))^3	$y = \ln ({(\frac{x^{2}}{5 x^{4} - 1})}^{3})$
18903	Solve for x	y=pi/x	$y = \frac{π}{x}$
18904	Solve for x	x=tan(y)	$x = \tan (y)$
18905	Solve for x	y=(ax+b)/(a-bx)	$y = \frac{a x + b}{a - b x}$
18906	Solve for x	6x^2+78x+252=0	$6 x^{2} + 78 x + 252 = 0$
18907	Solve for x	6x^2-480x+5400=0	$6 x^{2} - 480 x + 5400 = 0$
18908	Solve for x	6x^2-5x=56	$6 x^{2} - 5 x = 56$
18909	Solve for x	6x^2-96=0	$6 x^{2} - 96 = 0$
18910	Solve for x	6x^2-24x=0	$6 x^{2} - 24 x = 0$
18911	Solve for x	6x^2-18x-60=48	$6 x^{2} - 18 x - 60 = 48$
18912	Solve for x	6x^2+5y^2=36	$6 x^{2} + 5 y^{2} = 36$
18913	Solve for x	5- natural log of x-3=2	$5 - \ln (x - 3) = 2$
18914	Solve for x	5-8000x^-2=0	$5 - 8000 x^{- 2} = 0$
18915	Solve for x	6x^2+6x-36=0	$6 x^{2} + 6 x - 36 = 0$
18916	Solve for x	5 natural log of x=8	$5 \ln (x) = 8$
18917	Solve for x	6x^2=0	$6 x^{2} = 0$
18918	Solve for x	6 = square root of 2x-7+2	$6 = \sqrt{2 x - 7 + 2}$
18919	Solve for x	6 = square root of 49-x^2	$6 = \sqrt{49 - x^{2}}$
18920	Solve for x	-6x^4-6x^2+2=0	$- 6 x^{4} - 6 x^{2} + 2 = 0$
18921	Solve for x	60x-9/2x^2=0	$60 x - \frac{9}{2} x^{2} = 0$
18922	Solve for x	642x-4=256	$642 x - 4 = 256$
18923	Solve for x	-6x+18=0	$- 6 x + 18 = 0$
18924	Solve for x	600-x=0	$600 - x = 0$
18925	Solve for x	27^(2x)=9^(x-3)	$27^{2 x} = 9^{x - 3}$
18926	Solve for x	6x^2-6x=0	$6 x^{2} - 6 x = 0$
18927	Solve for x	6x^2-6x-72=0	$6 x^{2} - 6 x - 72 = 0$
18928	Solve for x	64x^2-784x+49=0	$64 x^{2} - 784 x + 49 = 0$
18929	Solve for x	6x-10=0	$6 x - 10 = 0$
18930	Solve for x	6x-16=0	$6 x - 16 = 0$
18931	Solve for x	6x-3x^2=0	$6 x - 3 x^{2} = 0$
18932	Solve for x	-7.5x^2+60x+6=0	$- 7.5 x^{2} + 60 x + 6 = 0$
18933	Solve for x	7e^(2 natural log of x)=448	$7 e^{2 \ln (x)} = 448$
18934	Solve for x	750e^(-0.4x)=375	$750 e^{- 0.4 x} = 375$
18935	Solve for x	-72x^-2+2=0	$- 72 x^{- 2} + 2 = 0$
18936	Solve for x	7x(2x-1)^2=1	$7 x {(2 x - 1)}^{2} = 1$
18937	Solve for x	7x(x-2)^2=1	$7 x {(x - 2)}^{2} = 1$
18938	Solve for x	9cos(x)=0	$9 \cos (x) = 0$
18939	Solve for x	9 natural log of x=1	$9 \ln (x) = 1$
18940	Solve for x	90=7x^2+2xh+2(7xh)	$90 = 7 x^{2} + 2 x h + 2 (7 x h)$
18941	Solve for x	9-2e^x=7	$9 - 2 e^{x} = 7$
18942	Solve for x	4x^3-12x^2+8x=0	$4 x^{3} - 12 x^{2} + 8 x = 0$
18943	Solve for x	-8x+32/x=0	$- 8 x + \frac{32}{x} = 0$
18944	Solve for x	8x+720000/(x^2)=0	$8 x + \frac{720000}{x^{2}} = 0$
18945	Solve for x	8sec(x)tan(x)+4sec(x)^2=0	$8 \sec (x) \tan (x) + 4 \sec^{2} (x) = 0$
18946	Solve for x	-8sin(x)+8cos(2x)=0	$- 8 \sin (x) + 8 \cos (2 x) = 0$
18947	Solve for x	8.45=1.69*5+x	$8.45 = 1.69 \cdot 5 + x$
18948	Solve for x	8 log base 4 of 2+ log base 4 of 3+x=1	$8 \log_{4} (2) + \log_{4} (3 + x) = 1$
18949	Solve for x	8cos(x)=0	$8 \cos (x) = 0$
18950	Solve for x	9x^2+164y^2=144	$9 x^{2} + 164 y^{2} = 144$
18951	Solve for x	9x-x^2=0	$9 x - x^{2} = 0$
18952	Solve for x	-9x-1=-9x^2	$- 9 x - 1 = - 9 x^{2}$
18953	Solve for x	a=36/x+6	$a = \frac{36}{x} + 6$
18954	Solve for x	arctan(x)=33/25	$\arctan (x) = \frac{33}{25}$
18955	Solve for x	6x-4=0	$6 x - 4 = 0$
18956	Solve for x	8-1728/(x^3)=0	$8 - \frac{1728}{x^{3}} = 0$
18957	Solve for x	7x=15-30x^2	$7 x = 15 - 30 x^{2}$
18958	Solve for x	8+3(3x-5)=8-5(2x+1)	$8 + 3 (3 x - 5) = 8 - 5 (2 x + 1)$
18959	Solve for x	80-6x=0	$80 - 6 x = 0$
18960	Solve for x	85x^2+1=12x	$85 x^{2} + 1 = 12 x$
18961	Solve for x	-8x+160=0	$- 8 x + 160 = 0$
18962	Solve for x	8x-2x^2-x^3=0	$8 x - 2 x^{2} - x^{3} = 0$
18963	Solve for x	cot(x)=-1/4	$\cot (x) = - \frac{1}{4}$
18964	Solve for x	f(9) = natural log of -x^3+3x^2+189x+1	$f (9) = \ln (- x^{3} + 3 x^{2} + 189 x + 1)$
18965	Solve for x	fx = cube root of x	$f x = \sqrt[3]{x}$
18966	Solve for x	natural log of square root of x+9=4	$\ln (\sqrt{x + 9}) = 4$
18967	Solve for x	natural log of x^7-4 natural log of x=1	$\ln (x^{7}) - 4 \ln (x) = 1$
18968	Solve for x	natural log of (x-2)^2=14	$\ln ({(x - 2)}^{2}) = 14$
18969	Solve for x	natural log of (90000(1+0.0158)^x)-(2334.6((1+0.0158)^x-1))/0.0158 = natural log of (90000-900000.85)(1-0.008165)^(x-12)	$\ln ((90000 {(1 + 0.0158)}^{x}) - \frac{2334.6 ({(1 + 0.0158)}^{x} - 1)}{0.0158}) = \ln ((90000 - 90000 \cdot 0.85) \cdot {(1 - 0.008165)}^{x - 12})$
18970	Solve for x	natural log of 1/x=-7	$\ln (\frac{1}{x}) = - 7$
18971	Solve for x	cos(45)=20/x	$\cos (45) = \frac{20}{x}$
18972	Solve for x	2(3x-13)-x=4(x-3)+7	$2 (3 x - 13) - x = 4 (x - 3) + 7$
18973	Solve for x	arctan(5x)=0	$\arctan (5 x) = 0$
18974	Solve for x	cos(48)=x/25	$\cos (48) = \frac{x}{25}$
18975	Solve for x	f(x^2)=x/(x+1)	$f (x^{2}) = \frac{x}{x + 1}$
18976	Solve for x	e = natural log of x	$e = \ln (x)$
18977	Solve for x	natural log of 37=4x	$\ln (37) = 4 x$
18978	Solve for x	natural log of 3x=4	$\ln (3 x) = 4$
18979	Solve for x	natural log of 3x-2=0	$\ln (3 x - 2) = 0$
18980	Solve for x	natural log of 4x-3 natural log of x^2 = natural log of 2	$\ln (4 x) - 3 \ln (x^{2}) = \ln (2)$
18981	Solve for x	natural log of 345=2x+3	$\ln (345) = 2 x + 3$
18982	Solve for x	natural log of -4x-95=0	$\ln (- 4 x - 95) = 0$
18983	Solve for x	natural log of 5x^2+2x-15-2 natural log of 2x-1=0	$\ln (5 x^{2} + 2 x - 15) - 2 \ln (2 x - 1) = 0$
18984	Solve for x	natural log of 5x+1+ natural log of x = natural log of 4	$\ln (5 x + 1) + \ln (x) = \ln (4)$
18985	Solve for x	natural log of -2x+3=-3	$\ln (- 2 x + 3) = - 3$
18986	Solve for x	natural log of 2x-3=5	$\ln (2 x - 3) = 5$
18987	Solve for x	natural log of 1-x=1/4	$\ln (1 - x) = \frac{1}{4}$
18988	Solve for x	natural log of x^4- natural log of x^2=2	$\ln (x^{4}) - \ln (x^{2}) = 2$
18989	Solve for x	natural log of x^1000=x	$\ln (x^{1000}) = x$
18990	Solve for x	natural log of 5x-6+ natural log of 6x=2 natural log of x	$\ln (5 x - 6) + \ln (6 x) = 2 \ln (x)$
18991	Solve for x	natural log of e+x=1	$\ln (e + x) = 1$
18992	Solve for x	natural log of 6+ natural log of x-1=0	$\ln (6) + \ln (x - 1) = 0$
18993	Solve for x	natural log of x+ natural log of x-1=5	$\ln (x) + \ln (x - 1) = 5$
18994	Solve for x	natural log of x=1/3*( natural log of 16+2 natural log of 2)	$\ln (x) = \frac{1}{3} \cdot (\ln (16) + 2 \ln (2))$
18995	Solve for x	natural log of x=-1/8	$\ln (x) = - \frac{1}{8}$
18996	Solve for x	natural log of x- natural log of x-1 = natural log of 4x-6	$\ln (x) - \ln (x - 1) = \ln (4 x - 6)$
18997	Solve for x	natural log of x+11+ natural log of x-5=2 natural log of x	$\ln (x + 11) + \ln (x - 5) = 2 \ln (x)$
18998	Solve for x	natural log of x- natural log of 1/x=2	$\ln (x) - \ln (\frac{1}{x}) = 2$
18999	Solve for x	natural log of x- natural log of x^2+ natural log of 4=0	$\ln (x) - \ln (x^{2}) + \ln (4) = 0$
19000	Solve for x	natural log of x- natural log of x^2+ natural log of 6=0	$\ln (x) - \ln (x^{2}) + \ln (6) = 0$