Practice
Solve for x.a) 3x2 − 13x + 12 = 0
{4/3,3}
{4/3,3}
b) 10x2 + 31x − 14 = 0
{2/5,-7/2}
{2/5,-7/2}
c) 14x2 + 43x + 20 = 0
{-4/7,-5/2}
{-4/7,-5/2}
d) 6x2 − 17x − 14 = 0
{-2/3,7/2}
{-2/3,7/2}
e) 20x2 − 17x − 10 = 0
{-2/5,5/4}
{-2/5,5/4}
f) 12x2 − 5x − 3 = 0
{-1/3,3/4}
{-1/3,3/4}
g) 20x2 + 19x + 3 = 0
{-1/5,-3/4}
{-1/5,-3/4}
h) 12x2 + 23x + 10 = 0
{-2/3,-5/4}
{-2/3,-5/4}
i) 5x2 + 14x − 3 = 0
{1/5,-3}
{1/5,-3}
j) 14x2 − 43x + 20 = 0
{4/7,5/2}
{4/7,5/2}