Question

Combine like terms
(x+3)+(9+x)

Answer 1

`x^(2)`+12x+27

Explanation:

First, you need to distribute. You multiply x by 9 and x, and then multiply 3 by 9 and x, which results in 9x +
`x^(2)` +27 +3x.

Second, you collect like terms. In this case, there is only one like term, which is x. The results of this should be
`x^(2)` + 27 + 11x.

Lastly, reorder the terms properly, and you're done!

Hope this helps.