Question

Express (x + 6)2 as a trinomial

Answer 1

`x^(2) +12x+36`

Explanation:

`(x+6)^(2)` can also be written as (x+6)(x+6), because "squared" just means "times itself"

Knowing this you can use FOIL to turn it into a Trinomial

First: x times x =
`x^(2)`

Outer: x times 6 = 6x

Inner: 6 times x = 6x

Last: 6 times 6 = 36

so we have
`x^(2) + 6x + 6x+36`

which becomes
`x^(2) +12x+36` when you combine like terms