Simplify: (5x2 + 3x + 4) + (5x2 + 5x − 1)

Question

goldphenoix · Answer

Combine like terms. 
You can't combine anything in the parenthesis, so you take out the parenthesis.

It should look like: 5x^2 + 3x + 4 + 5x^2 + 5x -1.
Now like I said, combine like terms. :)
Do you know how to do that?

anonymous · Answer

No.

jim_thompson5910 · Answer

something like 3x and 5x are like terms because they have the same variable with the same exponent

so adding them means you just add the numbers in front and tack on an x when you're done

so,

3x + 5x = 8x  (notice how 3+5 = 8)

jim_thompson5910 · Answer

other examples

6x + 4x = 10x

8x + 21x = 29x

13x^2 + 7x^2 = 20x^2 

3xy + 9xy = 12xy

jim_thompson5910 · Answer

hopefully all that makes sense

anonymous · Answer

Thank you guys. (:

jim_thompson5910 · Answer

you're welcome, what did you get for the final answer