Question 649752
You can't use the square property because there is an x term.<P>
Move all terms to one side:  {{{3x^2 - 8x -4 = 0}}}<P>
Use the quadratic formula {{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}} where a is the coefficient of the square term, b the coefficient of the x term, and c the constant.<P>
{{{x = (8 +- sqrt( 64+48 ))/(6) }}} =<P>
{{{x = (8 +- sqrt( 112 ))/(6) }}} =<P>
{{{x = (8 +- sqrt( 7*16 ))/(6) }}}= <P>
{{{x = (8 +- 4*sqrt( 7 ))/(6) }}}= <P>
{{{x = (4 +- 2*sqrt( 7 ))/(3) }}} <P>