202k views
4 votes
Expand and Simplify (x+3)(x+5)

User SimonMayer
by
6.7k points

2 Answers

3 votes


(x+3)(x+5) =x^2+5x+3x+15=x^2+8x+15

User Wella
by
6.1k points
2 votes

Answer:


x^2+8x+15

Step-by-step explanation:

Use the FOIL method of multiplying binomials.

First term in each binomial:
x*x=x^2

Outside terms:
x*5=5x

Inside terms:
3*x=3x

Last term in each binomial:
3*5=15

Add them all together.
x^2+5x+3x+15

Simplify.
x^2+8x+15

User JohnTortugo
by
6.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.