Question

Please factories the above polynomial.
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Answer 1

Answer:

(5a-3b)³

Step-by-step explanation:

Factor $125a^3-27b^3+75a^2b-45ab^2$.

Remember the identity : $(a-b)^3=a^3-3a^2b+3ab^2-b^3$.

Substitute $a=5a$, $b=-3b$, then use the identity.

∴$(5a-3b)^3$