Question

( a + b ) ( a - b ) is _____​

Answer 1

Answer:

a²-b²

Step-by-step explanation:

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Answer 2

Answer:

Hey Buddy!! Ur answer:

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

$this \: is \: how \: (a + b)(a - b) = {a}^{2} - {b}^{2} \\ = > (a + b)(a - b) \\ = {a}^{2} - ab + ab - {b}^{2} \\ = {a}^{2} - {b}^{2}$

Step-by-step explanation:

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