Evaluate
4\left(90-x\right)\left(x-40\right)
Expand
-4x^{2}+520x-14400
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-4x^{2}+360x+160x-14400
Apply the distributive property by multiplying each term of x-40 by each term of -4x+360.
-4x^{2}+520x-14400
Combine 360x and 160x to get 520x.
-4x^{2}+360x+160x-14400
Apply the distributive property by multiplying each term of x-40 by each term of -4x+360.
-4x^{2}+520x-14400
Combine 360x and 160x to get 520x.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
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