Evaluate
\left(3-a\right)\left(9a-7\right)
Expand
-9a^{2}+34a-21
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27a-9a^{2}-21+7a
Apply the distributive property by multiplying each term of 9a-7 by each term of 3-a.
34a-9a^{2}-21
Combine 27a and 7a to get 34a.
27a-9a^{2}-21+7a
Apply the distributive property by multiplying each term of 9a-7 by each term of 3-a.
34a-9a^{2}-21
Combine 27a and 7a to get 34a.
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Limits
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