Question

9-a²+2ab-b² factorize​

Answer 1

Answer:

9-a²+2ab-b²

3²-(a²+b²-2ab)

3²-(a-b)²

(3+a-b)(3-a+b)

Answer 2

(a)^2+(b)^2+2×a×b

(a+b)^2

(a+b)(a+b)

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