Practice
Solve for x.a) 14x2 − 43x + 20 = 0
{4/7,5/2}
{4/7,5/2}
b) 3x2 − 17x + 10 = 0
{2/3,5}
{2/3,5}
c) 28x2 − 57x + 14 = 0
{2/7,7/4}
{2/7,7/4}
d) 28x2 + 5x − 12 = 0
{4/7,-3/4}
{4/7,-3/4}
e) 3x2 − 5x − 12 = 0
{-4/3,3}
{-4/3,3}
f) 20x2 + 23x + 6 = 0
{-2/5,-3/4}
{-2/5,-3/4}
g) 14x2 + 31x − 10 = 0
{2/7,-5/2}
{2/7,-5/2}
h) 12x2 − 13x − 14 = 0
{-2/3,7/4}
{-2/3,7/4}
i) 10x2 + 29x + 10 = 0
{-2/5,-5/2}
{-2/5,-5/2}
j) 7x2 + 34x − 5 = 0
{1/7,-5}
{1/7,-5}
