Evaluate
20\left(46-x\right)\left(x-10\right)
Expand
-20x^{2}+1120x-9200
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920x-20x^{2}-9200+200x
Apply the distributive property by multiplying each term of x-10 by each term of 920-20x.
1120x-20x^{2}-9200
Combine 920x and 200x to get 1120x.
920x-20x^{2}-9200+200x
Apply the distributive property by multiplying each term of x-10 by each term of 920-20x.
1120x-20x^{2}-9200
Combine 920x and 200x to get 1120x.
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