Evaluate
\frac{\left(x-2\right)\left(x+36\right)}{2}
Expand
\frac{x^{2}}{2}+17x-36
Graph
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\frac{1}{2}xx+\frac{1}{2}x\left(-2\right)+18x-36
Apply the distributive property by multiplying each term of \frac{1}{2}x+18 by each term of x-2.
\frac{1}{2}x^{2}+\frac{1}{2}x\left(-2\right)+18x-36
Multiply x and x to get x^{2}.
\frac{1}{2}x^{2}+\frac{-2}{2}x+18x-36
Multiply \frac{1}{2} and -2 to get \frac{-2}{2}.
\frac{1}{2}x^{2}-x+18x-36
Divide -2 by 2 to get -1.
\frac{1}{2}x^{2}+17x-36
Combine -x and 18x to get 17x.
\frac{1}{2}xx+\frac{1}{2}x\left(-2\right)+18x-36
Apply the distributive property by multiplying each term of \frac{1}{2}x+18 by each term of x-2.
\frac{1}{2}x^{2}+\frac{1}{2}x\left(-2\right)+18x-36
Multiply x and x to get x^{2}.
\frac{1}{2}x^{2}+\frac{-2}{2}x+18x-36
Multiply \frac{1}{2} and -2 to get \frac{-2}{2}.
\frac{1}{2}x^{2}-x+18x-36
Divide -2 by 2 to get -1.
\frac{1}{2}x^{2}+17x-36
Combine -x and 18x to get 17x.
Examples
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Matrix
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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
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