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July 31, 2014

July 31, 2014

Posted by **Heather** on Friday, October 15, 2010 at 12:22pm.

x^2-144/x+4 times x^2-16/x+12

This is what I got:

(x+12)(x-12)/x+4 times (x-8)(x+2)/x+12

How is the answer x^2-16x+48

- Math check -
**Reiny**, Friday, October 15, 2010 at 3:40pmyour factored expression should have been

(x+12)(x-12)/x+4) * (x-4)(x+4)/x+12

= (x-12)(x-4)

expand this to get the answer given

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