Correct Answer: Option B

Explanation

The trinomial = \( a^2 − 4a + 4 \\

a^2 − b^2− 4a + 4 = (a^2 − 4a + 4) − b^2 \\

(a^2 − 2a − 2a + 4) − b^2 \\

a(a − 2)− 2(a − 2)] − b^2 \\

(a − 2)2 − b^2 \\

(a − 2 + b)(a − 2 − b )\)

There is an explanation video available below.

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