SOLUTION: Rewrite the middle term as the sum of two terms and then factor completely. 15x^2 – 21x + 6

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Rewrite the middle term as the sum of two terms and then factor completely. 15x^2 – 21x + 6       Log On


   

Question 83969: Rewrite the middle term as the sum of two terms and then factor completely.
15x^2 – 21x + 6
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
15x^2 – 21x + 6
Leading Coefficient * Constant
15 * 6 = 90
Factors of 90 that Sum to -21 ?
-15 and - 6
15x^2 - 15x - 6x + 6
(15x^2 - 15x) + (-6x + 6)
15x(x - 1) - 6(x - 1)
(15x - 6)(x - 1)