SOLUTION: I need help to factor by grouping this problem: 7x^3 + 2x^2 - 14x -4 the sign ^ means to the power I hope I am espressing it right. Thank you

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I need help to factor by grouping this problem: 7x^3 + 2x^2 - 14x -4 the sign ^ means to the power I hope I am espressing it right. Thank you      Log On


   

Question 162457: I need help to factor by grouping this problem: 7x^3 + 2x^2 - 14x -4
the sign ^ means to the power I hope I am espressing it right.
Thank you
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Factor by grouping:
7x%5E3%2B2x%5E2-14x-4 Group as follows:
%287x%5E3%2B2x%5E2%29-%2814x%2B4%29 Note the change of sign on the last term! Now factor x%5E2 from the first group and 2 from the second group.
x%5E2%287x%2B2%29-2%287x%2B2%29 Factor the common term (7x%2B2)
%287x%2B2%29%28x%5E2-2%29