SOLUTION: I haven't taken algebra in many many years. I can't remember it!
The problem says "Completely factor the expression: 16x^2-81y^2
Thank you for your help!
Melissa
Algebra.Com
Question 698671: I haven't taken algebra in many many years. I can't remember it!
The problem says "Completely factor the expression: 16x^2-81y^2
Thank you for your help!
Melissa
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
16x^2-81y^2
----
Difference of squares:
(4x)^2 - (9y)^2
----
Factor:
= (4x-9y)(4x+9y)
=====================
Cheers,
Stan H.
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