Question

What is equivalent to (x+8)(x+4)?
1.x^2+12x32
2.2x^2+10x+12
3.2x^2+12x+16
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Answer 1

x^2+12x + 32

Explanation:

Lets solve this piece by piece

x * x = x^2

x*4 = 4x

8 * x = 8x

8*4 = 32

now if we add all of these we get

x^2 + 12x + 32

which happens to be the first option

Answer 2

1. x^2+12x+32

Explanation:

(x+8)(x+4)

x(x+4)+8(x+4)

x^2+4x+8x+32

x^2+12x+32