Use the polynomial identity x^2+2ax+a^2=(x+a)(x+a) to rewrite x^2+4x+4. Which polynomial does this establish?(1 point)

1. x^2+4x+4=(x+2)(x+2)
2. x^2+4x+4=(x+4)(x+4)
3. x^2+4x+4=(x-4)(x-4)
4. x^2+4x+4=(x-2)(x-2)

1 answer

The polynomial x^2+4x+4 can be rewritten as (x+2)(x+2). Thus, the correct answer is:

1. x^2+4x+4=(x+2)(x+2)
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