Solve for x
x\leq 4
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x-2+2\left(x^{2}-4x+4\right)\geq 2x\left(x-3\right)+2
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(x-2\right)^{2}.
x-2+2x^{2}-8x+8\geq 2x\left(x-3\right)+2
Use the distributive property to multiply 2 by x^{2}-4x+4.
-7x-2+2x^{2}+8\geq 2x\left(x-3\right)+2
Combine x and -8x to get -7x.
-7x+6+2x^{2}\geq 2x\left(x-3\right)+2
Add -2 and 8 to get 6.
-7x+6+2x^{2}\geq 2x^{2}-6x+2
Use the distributive property to multiply 2x by x-3.
-7x+6+2x^{2}-2x^{2}\geq -6x+2
Subtract 2x^{2} from both sides.
-7x+6\geq -6x+2
Combine 2x^{2} and -2x^{2} to get 0.
-7x+6+6x\geq 2
Add 6x to both sides.
-x+6\geq 2
Combine -7x and 6x to get -x.
-x\geq 2-6
Subtract 6 from both sides.
-x\geq -4
Subtract 6 from 2 to get -4.
x\leq \frac{-4}{-1}
Divide both sides by -1. Since -1 is negative, the inequality direction is changed.
x\leq 4
Fraction \frac{-4}{-1} can be simplified to 4 by removing the negative sign from both the numerator and the denominator.
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}