Question

Choose the correct identity from the identity box given below to be used to solve the following questions that follow:
identity 1:
(a+b)2 = a2+b2+2ab
identity 2:
(a-b)2 = a2+b2-2ab
identity 3:
a2-b2 = (a+b)(a-b)
identity 4:
(x+a)(x+b) = x2+(a+b)x+ab

Answer 1

Step-by-step explanation:

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