Practice
Solve for x.a) 28x2 + 29x + 6 = 0
{-2/7,-3/4}
{-2/7,-3/4}
b) 14x2 + 53x + 14 = 0
{-2/7,-7/2}
{-2/7,-7/2}
c) 28x2 + 19x − 20 = 0
{4/7,-5/4}
{4/7,-5/4}
d) 14x2 + 41x − 28 = 0
{4/7,-7/2}
{4/7,-7/2}
e) 3x2 − 11x + 6 = 0
{2/3,3}
{2/3,3}
f) 6x2 − 23x + 20 = 0
{4/3,5/2}
{4/3,5/2}
g) 12x2 − 31x + 20 = 0
{4/3,5/4}
{4/3,5/4}
h) 28x2 + 19x − 20 = 0
{4/7,-5/4}
{4/7,-5/4}
i) 7x2 + 23x + 6 = 0
{-2/7,-3}
{-2/7,-3}
j) 7x2 − 39x + 20 = 0
{4/7,5}
{4/7,5}
