Question

(За + 2b)^3 – (За – 2b)^3=?
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Answer 1

Answer:

108a²b+16b³

Let's simplify step-by-step.

(3a+2b)3−(3a−2b)3

Distribute:

=27a3+54a2b+36ab2+8b3+−27a3+54a2b+−36ab2+8b3

Combine Like Terms:

=27a3+54a2b+36ab2+8b3+−27a3+54a2b+−36ab2+8b3

=(27a3+−27a3)+(54a2b+54a2b)+(36ab2+−36ab2)+(8b3+8b3)

=108a2b+16b3

Step-by-step explanation:

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