Evaluate
2\left(100-x\right)\left(x+10\right)
Expand
2000+180x-2x^{2}
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200x-2x^{2}+2000-20x
Apply the distributive property by multiplying each term of x+10 by each term of 200-2x.
180x-2x^{2}+2000
Combine 200x and -20x to get 180x.
200x-2x^{2}+2000-20x
Apply the distributive property by multiplying each term of x+10 by each term of 200-2x.
180x-2x^{2}+2000
Combine 200x and -20x to get 180x.
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