Question

(x+1)² using identity





please help on this question
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Answer 1

`x^2+2x+1`

Explanation:

Note that
`(a+b)^2=a^2+2ab+b^2`.

Let
`a=x` and
`b=1`.

`(x+1)^2=x^2+2(x)(1)+1^2=x^2+2x+1`