SOLUTION: How do I simplify this? 10x^2-30x+20 __________

SOLUTION: How do I simplify this? 10x^2-30x+20 ___________ = x^2-1

Question 454681: How do I simplify this?
10x^2-30x+20
___________ =
x^2-1
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
How do I simplify this?
10x^2-30x+20
___________ =
x^2-1
---
Factor:
= [10(x^2-3x+2)]/[(x-1)(x+1)]
----
= [10(x-2)(x-1)]/[(x-1)(x+1)
---------
Cancel the common (x-1) factor to get:
----
= [10(x-2)]/[x+1]
==========================
Cheers,
Stan H.
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