Question

PLEASE HELP 15 POINTS!!!!

what is the standard form of

(3x + 4)(x − 8)

Answer 1

`3 {x}^(2) + 20x - 32`

Explanation:

`(3x + 4)(x - 8) \\ 3x(x - 8) + 4(x - 8) \\ 3 {x}^(2) - 24x + 4x - 32 \\ = 3 {x}^(2) + 20x - 32`

Answer 2

3x^2 -20x-32

Explanation:

(3x + 4)(x − 8)

Foil

First: 3x*x = 3x^2

outer: -8*3x = -24x

inner: 4x

last: -8*4 =-32

Add them together

3x^2 -24x+4x -32

Combine like terms

3x^2 -20x-32

Standard form is ax^2 +bx+c