Evaluate
500\left(15-x\right)\left(x+1\right)
Expand
7500+7000x-500x^{2}
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-500x^{2}-500x+7500x+7500
Apply the distributive property by multiplying each term of -500x+7500 by each term of x+1.
-500x^{2}+7000x+7500
Combine -500x and 7500x to get 7000x.
-500x^{2}-500x+7500x+7500
Apply the distributive property by multiplying each term of -500x+7500 by each term of x+1.
-500x^{2}+7000x+7500
Combine -500x and 7500x to get 7000x.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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
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Limits
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