How do you simplify #2(x^2+2)-x+x^2+7#?

1 Answer
Jul 29, 2016

Answer:

Use the distributive property, then combine like terms.

Explanation:

The distributive property states that a(b+c)=a⋅b+a⋅c. Let's use this to solve for #2(x^2+2)#:

#2(x^2+2)=2*x^2+2*2=2x^2+4#

We now have #2x^2+4-x+x^2+7#.

Next, just combine like terms to get our answer, #3x^2-x+11#.