Practice
Solve for x.a) 5x2 + 27x + 10 = 0
{-2/5,-5}
{-2/5,-5}
b) 20x2 − 51x + 28 = 0
{4/5,7/4}
{4/5,7/4}
c) 5x2 − 21x − 20 = 0
{-4/5,5}
{-4/5,5}
d) 3x2 + 17x − 28 = 0
{4/3,-7}
{4/3,-7}
e) 3x2 + 5x − 12 = 0
{4/3,-3}
{4/3,-3}
f) 10x2 + 29x + 10 = 0
{-2/5,-5/2}
{-2/5,-5/2}
g) 6x2 − 29x + 28 = 0
{4/3,7/2}
{4/3,7/2}
h) 6x2 − 13x − 5 = 0
{-1/3,5/2}
{-1/3,5/2}
i) 6x2 + 25x + 14 = 0
{-2/3,-7/2}
{-2/3,-7/2}
j) 14x2 − 51x + 7 = 0
{1/7,7/2}
{1/7,7/2}
