Homework Help: Math help update

Posted by Shawn on Sunday, November 9, 2008 at 7:32pm.

let f(x) = 12x^2 +7x-10. Find x such that f(x)=0

a.) -4/5, 5/3
b.) -5/4, 2/3
c.) -2/5, 5/3
d.) -5/3, 2/3

I think I have it. I was able to factor out 12x^2 +7x-10 to
(4x+5) (3x-2)=0

The answer is -5/4 and 2/3

right?

Math help update - bobpursley, Sunday, November 9, 2008 at 7:35pm
correct.
Math help update - Reiny, Sunday, November 9, 2008 at 7:35pm
correct
- Math help update :) - Shawn, Sunday, November 9, 2008 at 7:36pm
  Thanks
Math help update Thanks - Shawn, Sunday, November 9, 2008 at 7:35pm
Thanks

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