SOLUTION: I know (think) I did this right but does seem right. 6x^2+17x-40 + 3 - 5x ___________ ___ ______ x^2+x-20 x-4 x+5 This is what i did... 6x^2+17

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons -> SOLUTION: I know (think) I did this right but does seem right. 6x^2+17x-40 + 3 - 5x ___________ ___ ______ x^2+x-20 x-4 x+5 This is what i did... 6x^2+17      Log On


   

Question 149857: I know (think) I did this right but does seem right.

6x^2+17x-40 + 3 - 5x
___________ ___ ______
x^2+x-20 x-4 x+5

This is what i did...
6x^2+17x-40 +3 -5x
___________ ____ _____
(x-4)(x+5) x-4 x+5

6x^2+17x-40 + 3(x+5) - 5x(x-4)
_____________________________________
(x-4)(x+5)

6x^2+17x-40 +3x+15-5x^2+20x = (6x^2-5x^2)+(17x+3x+20x)+(-40+15)= x^2+40x-25
x^2+40x-25
__________
(x-4)(x+5)

I don't see a way to break it down any further...?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
That looks right to me. Way to go!