Question 201847
(8x²-16x-4)/4
2x^2-4x-1
{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}
x=(4+-sqrt[-4^2-4*2*-1])/2*2
x=(4+-sqrt[16+8])/4
x=(4+-sqrt24)/4
x=(4+-4.9)/4
x=(4=4.9)/4
x=8.9/4
x=2.225 ans.
x=(4-4.9)/4
x=-.9/4
x=-.225 ans.