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December 21, 2014

December 21, 2014

Posted by **Anna** on Friday, March 4, 2011 at 2:01am.

- Algebra -
**agrin04**, Friday, March 4, 2011 at 2:15am(2x-3)(x+1)

- Algebra -
**Stanley**, Friday, March 4, 2011 at 2:31am2x^2-x-3=0

first step: 2*2x^-x-3=0

4x^-x-3=0

(4x^-4x)+(3x-3)=0

4x(x-1)+3(x-1)

(4x+3)(x-1)=0

(4x+3)=0 (x-1)=0

4x+3=0 X-1=0

-3 -3 -1 -1

4x=-3 x=-1

x=-3/4

Therefore, X=(-3/4, -1)

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