Practice
Solve for x.a) 7x2 − 33x − 10 = 0
{-2/7,5}
{-2/7,5}
b) 5x2 − 33x − 14 = 0
{-2/5,7}
{-2/5,7}
c) 10x2 + 27x + 5 = 0
{-1/5,-5/2}
{-1/5,-5/2}
d) 12x2 + 17x − 7 = 0
{1/3,-7/4}
{1/3,-7/4}
e) 20x2 + 9x − 20 = 0
{4/5,-5/4}
{4/5,-5/4}
f) 3x2 − 19x + 20 = 0
{4/3,5}
{4/3,5}
g) 3x2 + 10x + 3 = 0
{-1/3,-3}
{-1/3,-3}
h) 3x2 − 19x + 20 = 0
{4/3,5}
{4/3,5}
i) 28x2 + 39x + 5 = 0
{-1/7,-5/4}
{-1/7,-5/4}
j) 28x2 − 29x + 6 = 0
{2/7,3/4}
{2/7,3/4}
