Solve for x
x=-\frac{3}{10}=-0.3
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3+6x^{2}-8x=4x\left(2x-5\right)-2x\left(x-1\right)
Use the distributive property to multiply 2x by 3x-4.
3+6x^{2}-8x=8x^{2}-20x-2x\left(x-1\right)
Use the distributive property to multiply 4x by 2x-5.
3+6x^{2}-8x+2x\left(x-1\right)=8x^{2}-20x
Add 2x\left(x-1\right) to both sides.
3+6x^{2}-8x+2x^{2}-2x=8x^{2}-20x
Use the distributive property to multiply 2x by x-1.
3+8x^{2}-8x-2x=8x^{2}-20x
Combine 6x^{2} and 2x^{2} to get 8x^{2}.
3+8x^{2}-10x=8x^{2}-20x
Combine -8x and -2x to get -10x.
3+8x^{2}-10x-8x^{2}=-20x
Subtract 8x^{2} from both sides.
3-10x=-20x
Combine 8x^{2} and -8x^{2} to get 0.
3-10x+20x=0
Add 20x to both sides.
3+10x=0
Combine -10x and 20x to get 10x.
10x=-3
Subtract 3 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-3}{10}
Divide both sides by 10.
x=-\frac{3}{10}
Fraction \frac{-3}{10} can be rewritten as -\frac{3}{10} by extracting the negative sign.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}