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April 19, 2014

April 19, 2014

Posted by **Connie** on Tuesday, April 22, 2008 at 8:07pm.

(1) x^2+6x-25=0

(2) x^2-6x+25=0

(3) x^2+8x-25=0

(4) x^2-8x+25=0

I have no clue how to do it!!!PLEASE HELP!!!Please guide by step by step!!THANKS A LOT~!!!!

- math-repost -
**bobpursley**, Tuesday, April 22, 2008 at 8:12pmLook at the serds. To get a serd that is negative, you have to have a or c negative. That means only 1 or 3 can be correct. Now, which yields sqrt (b^2-4ac) to be 6i ?

- math-repost -
**Connie**, Tuesday, April 22, 2008 at 11:02pmI still don't get it

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