Practice
Solve for x.a) 6x2 +8x−6 = 0
{0.5352,-1.8685}
{0.5352,-1.8685}
b) 3x2 −2x−9 = 0
{2.0972,-1.4305}
{2.0972,-1.4305}
c) -6x2 −9x−1 = 0
{-1.3792,-0.1208}
{-1.3792,-0.1208}
d) -7x2 +2x+8 = 0
{-0.9357,1.2214}
{-0.9357,1.2214}
e) -4x2 −x+8 = 0
{-1.5447,1.2947}
{-1.5447,1.2947}
f) -2x2 −4x+9 = 0
{-3.3452,1.3452}
{-3.3452,1.3452}
g) -4x2 −5x+6 = 0
{-2,0.75}
{-2,0.75}
h) -4x2 −5x+5 = 0
{-1.9059,0.6559}
{-1.9059,0.6559}
i) 2x2 −6x+1 = 0
{2.8229,0.1771}
{2.8229,0.1771}
j) 6x2 +8x+1 = 0
{-0.1396,-1.1937}
{-0.1396,-1.1937}