{(3x+5y)³-45xy(3x+5y)}+45xy=????
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Answer:
27x3+125y3+45xy
Step-by-step explanation:
Let's simplify step-by-step.
(3x+5y)3−45xy(3x+5y)+45xy
Distribute:
=27x3+135x2y+225xy2+125y3+−135x2y+−225xy2+45xy
Combine Like Terms:
=27x3+135x2y+225xy2+125y3+−135x2y+−225xy2+45xy
=(27x3)+(135x2y+−135x2y)+(225xy2+−225xy2)+(125y3)+(45xy)
=27x3+125y3+45xy
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