Arthur D. answered • 04/28/15
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12k^2+14k-6=0
divide both sides by 2
6k^2+7k-3=0
factor
6*3=2*3*3=(2)*(3*3)=2*9 and 9-2=7, the coefficient of the middle term
(3k )(2k )=0 so far...
(3k 1)(2k 3)=0 so far...
(3k-1)(2k+3)=0
3k-1=0
3k=1
k=1/3
2k+3=0
2k=-3
k=-3/2
Arthur D.
tutor
You're welcome, Robyn.
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04/29/15
Robyn Y.
04/28/15