Practice
Solve for x.a) 12x2 + 7x − 12 = 0
{-4/3,3/4}
{-4/3,3/4}
b) 14x2 + 45x − 14 = 0
{2/7,-7/2}
{2/7,-7/2}
c) 7x2 − 53x + 28 = 0
{4/7,7}
{4/7,7}
d) 3x2 + 23x + 14 = 0
{-2/3,-7}
{-2/3,-7}
e) 20x2 + 29x + 5 = 0
{-1/5,-5/4}
{-1/5,-5/4}
f) 28x2 + 39x + 5 = 0
{-1/7,-5/4}
{-1/7,-5/4}
g) 5x2 − 17x + 6 = 0
{2/5,3}
{2/5,3}
h) 3x2 − 22x + 7 = 0
{1/3,7}
{1/3,7}
i) 12x2 + 37x + 28 = 0
{-4/3,-7/4}
{-4/3,-7/4}
j) 6x2 + 19x + 10 = 0
{-2/3,-5/2}
{-2/3,-5/2}
