SOLUTION: SOLVE BY USING COMPLETING THE SQUARE 3X^2+12X-2=0

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Question 467790: SOLVE BY USING COMPLETING THE SQUARE
3X^2+12X-2=0
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
3x%5E2%2B12x-2=0
/3
x%5E2%2B4x+-2%2F3=0
x%5E2%2B4x+=2%2F3
x%5E2%2B4x%2B4+=4%2B+2%2F3
%28x%2B2%29%5E2=14%2F3
take the square root
x+2= sqrt(4.66)
x= -2+2.16 =0.16
OR -2-2.16= -4.16
0.16 , -4.16