Question

What are the factors of `x^2 + 2x + 1` ?

Answer 1

The give polynomial is `x^2+2x+ 1`

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

Alternatively,
It can also be solved by the standard identity, `a^2 +2ab +b^2 = (a+b)^2`, where, `a = x` and `b=1`