Question

Expand and simplify (x+3) (x+5)

Answer 1

Explanation:

You are going to distribute the x and the -3.

x(x+5) - 3(x+5)

x^2 + 5x -3x -15 (now combine like terms)

x^2 + 2x - 15

Answer 2

x^2 +8x + 15

Explanation:

(x+3) (x+5) = x(x+5) +3(x+5)

= x^2 +5x +3x+15

=x^2 +8x + 15