Evaluate
\left(30-x\right)\left(x-20\right)
Expand
-x^{2}+50x-600
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30x-x^{2}-600+20x
Apply the distributive property by multiplying each term of x-20 by each term of 30-x.
50x-x^{2}-600
Combine 30x and 20x to get 50x.
30x-x^{2}-600+20x
Apply the distributive property by multiplying each term of x-20 by each term of 30-x.
50x-x^{2}-600
Combine 30x and 20x to get 50x.
Examples
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Limits
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