Question

what is the formula of (a+b)(a-b)​

Answer 1

Step-by-step explanation:

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

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Answer 2

Step-by-step explanation:

aa²+b²+2ab=(a+b)²

a²+b²-2ab=(a-b)²

a²-b²=(a+b)(a-b)

a³+b³=(a+b)(a²+b²-ab)

a³-b³=(a-b)(a²+b²+ab)

a³+b³+c³-3abc=(a+b+c)(a²+b²+c²-ab-bc-ca)

a³+b³+3ab(a+b)=(a+b)³

a³-b³-3ab(a-b)=(a-b)³