Question

Express (x+2)^2 as a trinomial in standard form.

Answer 1

x²+4x+4

Explanation:

Using a special algebraic identity which states,
`(a+b)^2=a^2+2ab+b^2`, we can solve this easier than using FOIL.

`(x+2)^2=x^2+2(2x)+4`

`(x+2)^2=x^2+4x+4`

Let me know if you have any questions.