Question

Solve:-(ab+2) (ab- 2)

Answer 1

Answer:

$(ab + 2)(ab - 2) \\ \\ = ({ab})^{2} - {2}^{2} = {a}^{2} {b}^{2} - 4$

Answer 2

Answer:

(ab+2)(ab-2)

= (ab²-2²)

= a²b²+4 ans.

because: (a+b)(a-b)= a²-b²

hope it helps you...

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