SOLUTION: Can someone help me with this? It is asking me to simplify. (-8b^2+9b+4)-(9b^2+4)

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Can someone help me with this? It is asking me to simplify. (-8b^2+9b+4)-(9b^2+4)      Log On


   

Question 374963: Can someone help me with this? It is asking me to simplify.
(-8b^2+9b+4)-(9b^2+4)
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
(-8b^2+9b+4)-(9b^2+4)
distribute the "negative sign":
(-8b^2+9b+4)-9b^2-4
removing the parenthesis
-8b^2+9b+4-9b^2-4
grouping like-terms:
-8b^2-9b^2+9b+4-4
(-8b^2-9b^2)+9b+(4-4)
-17b^2+9b+0
-17b^2+9b