Practice
Solve for x.a) 5x2 + 11x − 12 = 0
{4/5,-3}
{4/5,-3}
b) 14x2 − 43x + 20 = 0
{4/7,5/2}
{4/7,5/2}
c) 28x2 + 37x + 12 = 0
{-4/7,-3/4}
{-4/7,-3/4}
d) 3x2 + 5x − 12 = 0
{4/3,-3}
{4/3,-3}
e) 12x2 + 17x − 7 = 0
{1/3,-7/4}
{1/3,-7/4}
f) 5x2 + 23x − 10 = 0
{2/5,-5}
{2/5,-5}
g) 5x2 − 27x + 10 = 0
{2/5,5}
{2/5,5}
h) 5x2 − 36x + 7 = 0
{1/5,7}
{1/5,7}
i) 10x2 + 19x + 6 = 0
{-2/5,-3/2}
{-2/5,-3/2}
j) 12x2 + x − 6 = 0
{2/3,-3/4}
{2/3,-3/4}