Evaluate
-x\left(2-x\right)^{2}
Expand
-x^{3}+4x^{2}-4x
Graph
Share
Copied to clipboard
\left(2-x\right)\left(\left(1-x\right)^{2}-1\right)
Multiply 1-x and 1-x to get \left(1-x\right)^{2}.
\left(2-x\right)\left(1-2x+x^{2}-1\right)
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(1-x\right)^{2}.
\left(2-x\right)\left(-2x+x^{2}\right)
Subtract 1 from 1 to get 0.
-4x+2x^{2}+2x^{2}-x^{3}
Apply the distributive property by multiplying each term of 2-x by each term of -2x+x^{2}.
-4x+4x^{2}-x^{3}
Combine 2x^{2} and 2x^{2} to get 4x^{2}.
\left(2-x\right)\left(\left(1-x\right)^{2}-1\right)
Multiply 1-x and 1-x to get \left(1-x\right)^{2}.
\left(2-x\right)\left(1-2x+x^{2}-1\right)
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(1-x\right)^{2}.
\left(2-x\right)\left(-2x+x^{2}\right)
Subtract 1 from 1 to get 0.
-4x+2x^{2}+2x^{2}-x^{3}
Apply the distributive property by multiplying each term of 2-x by each term of -2x+x^{2}.
-4x+4x^{2}-x^{3}
Combine 2x^{2} and 2x^{2} to get 4x^{2}.
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}