SOLUTION: Factor by grouping, if possible, and check. 52. 5x^3 + 4x^2 − 10x − 8 Will someone please help me with this problem, I need help quickly if possible.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Factor by grouping, if possible, and check. 52. 5x^3 + 4x^2 − 10x − 8 Will someone please help me with this problem, I need help quickly if possible.      Log On


   

Question 505365: Factor by grouping, if possible, and check.
52.
5x^3 + 4x^2 − 10x − 8
Will someone please help me with this problem, I need help quickly if possible.
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Factor by grouping:
5x%5E3%2B4x%5E2-10x-8 Group as shown:
highlight%285x%5E3%2B4x%5E2%29-highlight%28%2810x%2B8%29%29 Factor as shown:
x%5E2%2Ahighlight_green%28%285x%2B4%29%29-2%2Ahighlight_green%28%285x%2B4%29%29 Now factor the highlight_green%285x%2B4%29
highlight%28%28x%5E2-2%29%285x%2B4%29%29 You can check the answer by multiplying the two factors.