Evaluate
2\left(30-x\right)\left(x-10\right)
Expand
-2x^{2}+80x-600
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-2x^{2}+60x+20x-600
Apply the distributive property by multiplying each term of x-10 by each term of -2x+60.
-2x^{2}+80x-600
Combine 60x and 20x to get 80x.
-2x^{2}+60x+20x-600
Apply the distributive property by multiplying each term of x-10 by each term of -2x+60.
-2x^{2}+80x-600
Combine 60x and 20x to get 80x.
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