SOLUTION: factor the polynomial. 9x^2-64. I wasnt sure how to do this since it isnt in the form of ax^2+bx+c=0 hope you can help!! THANKS!

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: factor the polynomial. 9x^2-64. I wasnt sure how to do this since it isnt in the form of ax^2+bx+c=0 hope you can help!! THANKS!      Log On


   



Question 168679: factor the polynomial.
9x^2-64.
I wasnt sure how to do this since it isnt in the form of ax^2+bx+c=0
hope you can help!! THANKS!

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
9x^2-64.
The form is a^2 - b^2 which factors as (a-b)(a+b)
------------------------
(3x)^2 - 8^2 = (3x-8)(3x+8)
================================
Cheers,
Stan H.