Question

How do you multiply `(x + 2)(x + 10)`?

Answer 1

`(x+2)(x+10) = x^2+12x+20`

Explanation:

If you find it helpful, you can use the FOIL mnemonic to help enumerate all the required combinations of one term from the first binomial and one from the second:

`(x+2)(x+10) = overbrace((x*x))^"First"+overbrace((x*10))^"Outside"+overbrace((2*x))^"Inside"+overbrace((2*10))^"Last"`

`color(white)((x+2)(x+10)) = x^2+10x+2x+20`

`color(white)((x+2)(x+10)) = x^2+12x+20`