How do you simplify (x+9)(x+2)?
3 Answers
Apr 5, 2018
Explanation:
USE FOIL:
FIRST: Multiply
OUTSIDE: Multiply
INSIDE: Multiply
LAST: Multiply 9 by 2 to get 18
Then add each answer together to get
Which simplifies to
Apr 6, 2018
Explanation:
Apr 6, 2018
Explanation:
We can simplify thus using the highly useful mnemonic FOIL, standing for Firsts, Outsides, Insides, Lasts. You'll see we'll multiply the first terms, outside terms, inside terms and last terms. Here's a breakdown:
- First terms:
x*x=color(blue)(x^2) - Outside terms:
x*2=color(blue)(2x) - Inside terms:
9*x=color(blue)(9x) - Last terms:
9*2=color(blue)(18)
Thus, we have:
Which simplifies to
Hope this helps!