Question

Use the identities to multiply-
a. (x + 7) with (x - 7) b. (x + 3) with itself
PLEASE ANSWER THIS...​

Answer 1

Step-by-step explanation:

a. (x+7)(x-1)

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

x^2 + 6x -7

b.(x+3)(x+3)

(x+3)^2

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

x^2 +9+18

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Answer 2

upper answer is right dear

purple u