Practice
Solve for x.a) 10x2 − 17x + 3 = 0
{1/5,3/2}
{1/5,3/2}
b) 7x2 − 39x + 20 = 0
{4/7,5}
{4/7,5}
c) 5x2 − 23x − 10 = 0
{-2/5,5}
{-2/5,5}
d) 3x2 + 16x + 5 = 0
{-1/3,-5}
{-1/3,-5}
e) 6x2 − 29x + 28 = 0
{4/3,7/2}
{4/3,7/2}
f) 28x2 + 19x − 20 = 0
{4/7,-5/4}
{4/7,-5/4}
g) 12x2 + 25x + 7 = 0
{-1/3,-7/4}
{-1/3,-7/4}
h) 12x2 + 5x − 3 = 0
{1/3,-3/4}
{1/3,-3/4}
i) 20x2 + 33x + 10 = 0
{-2/5,-5/4}
{-2/5,-5/4}
j) 14x2 − 45x − 14 = 0
{-2/7,7/2}
{-2/7,7/2}
