SOLUTION: Can you please help me understand the rules and format for this type of math? (6x^2-4x+7)+(2x^2-3x-9)= I tried this one,but i cant figured it out? 6x-(4x-5)=13 6x+(4x+5

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Can you please help me understand the rules and format for this type of math? (6x^2-4x+7)+(2x^2-3x-9)= I tried this one,but i cant figured it out? 6x-(4x-5)=13 6x+(4x+5      Log On


   

Question 128560: Can you please help me understand the rules and format for this type of math?

(6x^2-4x+7)+(2x^2-3x-9)=
I tried this one,but i cant figured it out?
6x-(4x-5)=13
6x+(4x+5)=13
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
%286x%5E2-4x%2B7%29%2B%282x%5E2-3x-9%29 Start with the given expression


%286x%5E2%2B2x%5E2%29%2B%28-4x-3x%29%2B%287-9%29 Group like terms


8x%5E2-7x-2 Combine like terms