Question

By using the identity (x + a)(x + b) = x2 + (a + b)x + ab.
Find the product of (3a2 + 2)(3a2 + 5)
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Answer 1

Step-by-step explanation:

$(3a {}^{2} ) {}^{2} + (2 + 5)3a {}^{2} + 10$

$9a {}^{4} + 21a {}^{2} + 10$