Mathway | Problèmes fréquents

Problèmes fréquents

Rang	Matière	Problème	Problème de formatage
9901	Simplifier	(2s^3t^-1)(1/4s^6)(16t^4)	$(2 s^{3} t^{- 1}) (\frac{1}{4} s^{6}) (16 t^{4})$
9902	Simplifier	(2x^2-3x+1)(4)(3x+2)^3(3)+(3x+2)^4(4x-3)	$(2 x^{2} - 3 x + 1) (4) {(3 x + 2)}^{3} (3) + {(3 x + 2)}^{4} (4 x - 3)$
9903	Simplifier	(2-2i)(-3+3i)	$(2 - 2 i) (- 3 + 3 i)$
9904	Simplifier	(2-2i)(4+2i)	$(2 - 2 i) (4 + 2 i)$
9905	Simplifier	(2+i)(5+i)	$(2 + i) (5 + i)$
9906	Simplifier	(-3x^2y^3z)(-xy^2z^3)^3	$(- 3 x^{2} y^{3} z) {(- x y^{2} z^{3})}^{3}$
9907	Simplifier	(2x-5)(2-x)	$(2 x - 5) (2 - x)$
9908	Simplifier	(2y-7)(2y+7)	$(2 y - 7) (2 y + 7)$
9909	Simplifier	(-3x^-2)(4x^4)	$(- 3 x^{- 2}) (4 x^{4})$
9910	Simplifier	(3x^3y^4)(2x^-5y^-2)^2	$(3 x^{3} y^{4}) {(2 x^{- 5} y^{- 2})}^{2}$
9911	Simplifier	(2-i)(3+i)	$(2 - i) (3 + i)$
9912	Simplifier	2-3i+(3-4i)	$2 - 3 i + (3 - 4 i)$
9913	Simplifier	(2-5i)(3-2i)	$(2 - 5 i) (3 - 2 i)$
9914	Simplifier	(28\|x^2-13x+40\|)(\|4x-20\|)	$(28 \| x^{2} - 13 x + 40 \|) (\| 4 x - 20 \|)$
9915	Simplifier	2-3i+(6+5i)	$2 - 3 i + (6 + 5 i)$
9916	Simplifier	(1-sin(x))(1+csc(x))sin(x)	$(1 - \sin (x)) (1 + \csc (x)) \sin (x)$
9917	Simplifier	(2x+1)(3x-2)-5(4x-1)	$(2 x + 1) (3 x - 2) - 5 (4 x - 1)$
9918	Simplifier	(2x+5y)(7x-y)	$(2 x + 5 y) (7 x - y)$
9919	Simplifier	-(2x-3y-6)	$- (2 x - 3 y - 6)$
9920	Resolva para x	x^3-6x^2+12x=8	$x^{3} - 6 x^{2} + 12 x = 8$
9921	Resolva para x	x^4-x^3+x-1=0	$x^{4} - x^{3} + x - 1 = 0$
9922	Resolva para x	x^4+4x^2-45=0	$x^{4} + 4 x^{2} - 45 = 0$
9923	Escreva com uma Função de ?	theta=pi/4	$θ = \frac{π}{4}$
9924	Resolva para x	(x-1)/(2x-4)+(x+2)/(3x)=1	$\frac{x - 1}{2 x - 4} + \frac{x + 2}{3 x} = 1$
9925	Resolva para x	0.36(18)+0.06x=0.18(24+x)	$0.36 (18) + 0.06 x = 0.18 (24 + x)$
9926	Resolva para x	x^2-4x+20=0	$x^{2} - 4 x + 20 = 0$
9927	Resolva para x	x^2-4x-10=0	$x^{2} - 4 x - 10 = 0$
9928	Resolva para x	x^3+2x^2-48x=0	$x^{3} + 2 x^{2} - 48 x = 0$
9929	Resolva para x	x^3-6x^2+8x=0	$x^{3} - 6 x^{2} + 8 x = 0$
9930	Resolva para x	x^3+(x+3)^3=35000	$x^{3} + {(x + 3)}^{3} = 35000$
9931	Resolva para x	x^2-100x^2-x+100=0	$x^{2} - 100 x^{2} - x + 100 = 0$
9932	Resolva para x	x^2+8x=65	$x^{2} + 8 x = 65$
9933	Resolva para x	x^2+x+11=5x-8	$x^{2} + x + 11 = 5 x - 8$
9934	Resolva para x	x^2=0.25	$x^{2} = 0.25$
9935	Resolva para x	x^2=3x+40	$x^{2} = 3 x + 40$
9936	Resolva para x	x^2+2ax+a^2=0	$x^{2} + 2 a x + a^{2} = 0$
9937	Resolva para x	x^2+50x+400=0	$x^{2} + 50 x + 400 = 0$
9938	Resolva para x	x/(x-8)-8/(x+8)=128/(x^2-64)	$\frac{x}{x - 8} - \frac{8}{x + 8} = \frac{128}{x^{2} - 64}$
9939	Resolva para x	x^(1/2)-3x^(1/4)+2=0	$x^{\frac{1}{2}} - 3 x^{\frac{1}{4}} + 2 = 0$
9940	Resolva para x	x/5=x/3+3/5	$\frac{x}{5} = \frac{x}{3} + \frac{3}{5}$
9941	Resolva para x	racine carrée de 53-x=x+3	$\sqrt{53 - x} = x + 3$
9942	Resolva para x	racine carrée de x+7- racine carrée de 2x-3=2	$\sqrt{x + 7} - \sqrt{2 x - 3} = 2$
9943	Trouver la valeur exacte	cos(-90)	$\cos (- 90)$
9944	Resolva para x	x^(2/3)-16/49=0	$x^{\frac{2}{3}} - \frac{16}{49} = 0$
9945	Resolva para x	11x^2+33x=0	$11 x^{2} + 33 x = 0$
9946	Resolva para x	2*5^(x/4)=250	$2 \cdot 5^{\frac{x}{4}} = 250$
9947	Resolva para x	-16x^2+96x+15=h	$- 16 x^{2} + 96 x + 15 = h$
9948	Resolva para x	1.25x+2.25y=942.50	$1.25 x + 2.25 y = 942.5$
9949	Resolva para x	2x^2+5x=3	$2 x^{2} + 5 x = 3$
9950	Resolva para x	2(8^(x+1))^3=64	$2 {(8^{x + 1})}^{3} = 64$
9951	Resolva para x	2x^4+3=y^2	$2 x^{4} + 3 = y^{2}$
9952	Resolva para x	2x^2+3x-6=0	$2 x^{2} + 3 x - 6 = 0$
9953	Resolva para x	-2=9(cos(x-4))+7	$- 2 = 9 (\cos (x - 4)) + 7$
9954	Resolva para x	20(1.07)^x=8(1.13)^x	$20 {(1.07)}^{x} = 8 {(1.13)}^{x}$
9955	Resolva para x	3-\|2x-1\|=6	$3 - \| 2 x - 1 \| = 6$
9956	Resolva para x	3x^2+2x=7	$3 x^{2} + 2 x = 7$
9957	Resolva para x	3x^2=4x-10	$3 x^{2} = 4 x - 10$
9958	Resolva para x	3x^2+17x+14=0	$3 x^{2} + 17 x + 14 = 0$
9959	Resolva para x	3x^2-4x=18	$3 x^{2} - 4 x = 18$
9960	Resolva para x	3x^2-8x-20=0	$3 x^{2} - 8 x - 20 = 0$
9961	Resolva para x	base logarithmique 4 de 64=x+2	$\log_{4} (64) = x + 2$
9962	Resolva para x	2-3x-2x^2=0	$2 - 3 x - 2 x^{2} = 0$
9963	Resolva para x	27=9^(x^2)*3^(5x)	$27 = 9^{x^{2}} \cdot 3^{5 x}$
9964	Resolva para x	x^4-9x^2+18=0	$x^{4} - 9 x^{2} + 18 = 0$
9965	Resolva para x	240=x(x+7)(18-2x)	$240 = x (x + 7) (18 - 2 x)$
9966	Resolva para x	2x-(3/2-1/2x)=1	$2 x - (\frac{3}{2} - \frac{1}{2} x) = 1$
9967	Resolva para x	2x = square root of -10x-4	$2 x = \sqrt{- 10 x - 4}$
9968	Resolva para x	2x-8y+4=0	$2 x - 8 y + 4 = 0$
9969	Resolva para x	2x+3y=400	$2 x + 3 y = 400$
9970	Resolva para x	3(2^(2x))-11*2^x-4=0	$3 (2^{2 x}) - 11 \cdot 2^{x} - 4 = 0$
9971	Resolva para x	9cos(x+5)=-cos(x)	$9 \cos (x + 5) = - \cos (x)$
9972	Resolva para x	9x^3+8x^2-4=-x+16x+12	$9 x^{3} + 8 x^{2} - 4 = - x + 16 x + 12$
9973	Trouver le domaine	f(x) = square root of 2x-1	$f (x) = \sqrt{2 x - 1}$
9974	Resolva para x	87.6=0.2x^(3/2)	$87.6 = 0.2 x^{\frac{3}{2}}$
9975	Trouver le foyer	x^2=20y	$x^{2} = 20 y$
9976	Resolva para x	cos(3x)=( racine carrée de 3)/2	$\cos (3 x) = \frac{\sqrt{3}}{2}$
9977	Resolva para x	cos(x)=-0.12	$\cos (x) = - 0.12$
9978	Identifier le cône	5x^2+9y^2-80x+54y+221=0	$5 x^{2} + 9 y^{2} - 80 x + 54 y + 221 = 0$
9979	Trouver les sommets	(x^2)/81+(y^2)/9=1	$\frac{x^{2}}{81} + \frac{y^{2}}{9} = 1$
9980	Resolva para x	6x(x-1)=21-x	$6 x (x - 1) = 21 - x$
9981	Resolva para x	6(4^x)=7	$6 (4^{x}) = 7$
9982	Resolva para x	6sin(x)^x=-2sin(x)+8	$6 {\sin (x)}^{x} = - 2 \sin (x) + 8$
9983	Resolva para x	7=49^(3x)	$7 = 49^{3 x}$
9984	Resolva para x	7e^x=6-e^(-x)	$7 e^{x} = 6 - e^{- x}$
9985	Resolva para x	7x^2-2=5x	$7 x^{2} - 2 = 5 x$
9986	Resolva para x	8.002=x*8.265	$8.002 = x \cdot 8.265$
9987	Resolva para x	x^(2/3)=1	$x^{\frac{2}{3}} = 1$
9988	Resolva para x	4x+50x-746=0	$4 x + 50 x - 746 = 0$
9989	Resolva para x	4=1/(2^(x-1))	$4 = \frac{1}{2^{x - 1}}$
9990	Resolva para x	5x^3+8x^2-9x+2=0	$5 x^{3} + 8 x^{2} - 9 x + 2 = 0$
9991	Resolva para x	5e^(0.2x)=3	$5 e^{0.2 x} = 3$
9992	Resolva para x	5sin(x)^2x-1=0	$5 \sin^{2} (x) x - 1 = 0$
9993	Resolva para x	5x+2=32	$5 x + 2 = 32$
9994	Resolva para X	3X^3+9X^2+8X+4=X+2	$3 X^{3} + 9 X^{2} + 8 X + 4 = X + 2$
9995	Resolva para x	3xe^(-x)+x^2e^(-x)=0	$3 x e^{- x} + x^{2} e^{- x} = 0$
9996	Resolva para x	3cos(x)-cot(x)=0	$3 \cos (x) - \cot (x) = 0$
9997	Resolva para x	3x+ racine carrée de 6-9x=2	$3 x + \sqrt{6 - 9 x} = 2$
9998	Resolva para x	4(1+10^(3x))=9	$4 (1 + 10^{3 x}) = 9$
9999	Resolva para x	4e^(2x)=16e^(-6x)	$4 e^{2 x} = 16 e^{- 6 x}$
10000	Resolva para x	-4- racine carrée de 4-x=6	$- 4 - \sqrt{4 - x} = 6$