Practice
Solve for x.a) 12x2 − 17x + 6 = 0
{2/3,3/4}
{2/3,3/4}
b) 7x2 + 36x + 5 = 0
{-1/7,-5}
{-1/7,-5}
c) 7x2 + 53x + 28 = 0
{-4/7,-7}
{-4/7,-7}
d) 20x2 + 51x + 28 = 0
{-4/5,-7/4}
{-4/5,-7/4}
e) 7x2 + 48x − 7 = 0
{1/7,-7}
{1/7,-7}
f) 10x2 − 33x − 7 = 0
{-1/5,7/2}
{-1/5,7/2}
g) 7x2 + 31x − 20 = 0
{4/7,-5}
{4/7,-5}
h) 6x2 + 23x + 20 = 0
{-4/3,-5/2}
{-4/3,-5/2}
i) 14x2 − 27x − 20 = 0
{-4/7,5/2}
{-4/7,5/2}
j) 3x2 − 19x + 20 = 0
{4/3,5}
{4/3,5}
