Question

Verify the given polynomial identity

a^2 - b^2 = (a-b) (a+b)

Answer 1

Answer:

$(a - b)(a + b) \\ a(a + b) - b(a + b) \\ {a}^{2} + ab - ab - {b}^{2} ( + ab \: and \: - ab \: cancel) \\ {a}^{2} - b ^{2}$

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