SOLUTION: Factor by Grouping: Will you please help with grouping factorization. I'm about to pull my hair out! Thank you, Donna Green 12x^3 - 21x^2 + 20x - 35

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Factor by Grouping: Will you please help with grouping factorization. I'm about to pull my hair out! Thank you, Donna Green 12x^3 - 21x^2 + 20x - 35      Log On


   

Question 206305: Factor by Grouping:
Will you please help with grouping factorization. I'm about to pull my hair out!
Thank you,
Donna Green
12x^3 - 21x^2 + 20x - 35
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
the grouping looks ok

(12x^3 - 21x^2) + (20x - 35)

factoring ___ 3x^2(4x - 7) + 5(4x - 7)

rearranging ___ (3x^2 + 5)(4x - 7)