SOLUTION: Can you please help me with this? I have no idea how to work these. (3x squared - 7x + 5)+(-2x squared + 7x - 8) (5y squared - 3y + 4)-(3y squared - 7y + 2)

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Can you please help me with this? I have no idea how to work these. (3x squared - 7x + 5)+(-2x squared + 7x - 8) (5y squared - 3y + 4)-(3y squared - 7y + 2)       Log On


   

Question 115114: Can you please help me with this? I have no idea how to work these.
(3x squared - 7x + 5)+(-2x squared + 7x - 8)

(5y squared - 3y + 4)-(3y squared - 7y + 2)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
3x%5E2-7x%2B5-2x%5E2%2B7x-8 Start with the given expression

%283x%5E2-2x%5E2%29%2B%28-7x%2B7x%29%2B%285-8%29 Group like terms

x%5E2-3 Combine like terms



%285y%5E2-3y%2B4%29-%283y%5E2-7y%2B2%29 Start with the given expression


5y%5E2-3y%2B4-3y%5E2%2B7y-2%29 Distribute the negative

%285y%5E2-3y%5E2%29%2B%28-3y%2B7y%29%2B%284-2%29 Group like terms

2y%5E2%2B4y%2B2 Combine like terms