Question 454681
How do I simplify this? 
10x^2-30x+20
___________ = 
x^2-1

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Factor:
= [10(x^2-3x+2)]/[(x-1)(x+1)]
----
= [10(x-2)(x-1)]/[(x-1)(x+1)
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Cancel the common (x-1) factor to get:
----
= [10(x-2)]/[x+1]
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Cheers,
Stan H.