A2(b2-1)-6a(b2-1)+9(b2-1)

Question

A2(b2-1)-6a(b2-1)+9(b2-1)

Answer 1

(b2-1)(a2-6a+9)
(b2-1)(a+3)2
(b-1)(b+1)(a+3)2

Comments

Спасибо большое☺

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