Expand
-19x^{2}+1660x-36000
Evaluate
\left(900-19x\right)\left(x-40\right)
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900x-36000-19x^{2}+760x
Apply the distributive property by multiplying each term of 900-19x by each term of x-40.
1660x-36000-19x^{2}
Combine 900x and 760x to get 1660x.
900x-36000-19x^{2}+760x
Apply the distributive property by multiplying each term of 900-19x by each term of x-40.
1660x-36000-19x^{2}
Combine 900x and 760x to get 1660x.
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