Question

Express as a trinomial.

Answer 1

`x^2+2x+1`

Explanation:

When given the following trinomial,

`(x+1)(x+1)`

Distribute, multiply every term in one of the parenthesis by every term in the other,

`(x)(x)+(1)(x)+(1)(x)+(1)(1)`

Simplify,

`x^2+x+x+1`

Combine like terms

`x^2+2x+1`

Answer 2

Explanation:

Use Foil

f: x * x = x^2

o: x * 1 = x

i: x * 1 = x

l: 1 * 1

x^2 + x + x + 1

x^2 + 2x + 1