Question

(a+b).( a-b)
$(a + b)(a - b)$
a+b a-b
a2 -b2
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Answer 1

Step-by-step explanation:

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

I hope this helps ( ╹▽╹ )

Answer 2

Answer:

(a+b) (a- b)

a2+ab-ba-b2 =a2-b2