Question

(x+7)(x-7)using identity (x+a)(x+b)​

Answer 1

we know that

$(x + a)(x + b) = x {}^{2} + (a + b)x + ab$

then ,

$(x + 7)(x - 7)$

$= x {}^{2} - 49$

I hope it helps you

Answer 2

Answer:

(x-7)^2

Step-by-step explanation:

(X+y)(x-y) = (x-y)^2

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