Evaluate
10\left(50-x\right)\left(x-20\right)
Expand
-10x^{2}+700x-10000
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-10x^{2}+200x+500x-10000
Apply the distributive property by multiplying each term of -10x+500 by each term of x-20.
-10x^{2}+700x-10000
Combine 200x and 500x to get 700x.
-10x^{2}+200x+500x-10000
Apply the distributive property by multiplying each term of -10x+500 by each term of x-20.
-10x^{2}+700x-10000
Combine 200x and 500x to get 700x.
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