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September 23, 2014

September 23, 2014

Posted by **Jack** on Wednesday, November 9, 2011 at 12:46pm.

y=x^2+4x-5

- algebra -
**Steve**, Wednesday, November 9, 2011 at 1:36pmy = (x+5)(x-1)

Now, for which values of x is y=0?

Hint: if a product of factors is zero, at least one of the factors must be zero.

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