Practice
Solve for x.a) -6x2 −5x+1 = 0
{-1,0.1667}
{-1,0.1667}
b) -6x2 +3x+7 = 0
{-0.8587,1.3587}
{-0.8587,1.3587}
c) -5x2 −7x+3 = 0
{-1.744,0.344}
{-1.744,0.344}
d) -5x2 +3x+8 = 0
{-1,1.6}
{-1,1.6}
e) 1x2 +3x−3 = 0
{0.7913,-3.7913}
{0.7913,-3.7913}
f) 7x2 +5x−9 = 0
{0.8317,-1.546}
{0.8317,-1.546}
g) -9x2 −8x+1 = 0
{-1,0.1111}
{-1,0.1111}
h) -7x2 −5x+3 = 0
{-1.1029,0.3886}
{-1.1029,0.3886}
i) -6x2 −8x+8 = 0
{-2,0.6667}
{-2,0.6667}
j) -1x2 +6x−7 = 0
{1.5858,4.4142}
{1.5858,4.4142}