Expand using identity a) (2a-5b)²b)7³-10+3³please answer – InterviewSolution

1.

Expand using identity a) (2a-5b)²b)7³-10+3³please answer

Answer» ONG>ANSWER:

a) (2A-5B)²

(2a)²+(5b)²-2×2×-5

4a²+25b²+20

b)7³-10+3³

343-10+27

333-27

306

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