Practice
Solve for x.a) x2 + 14x + 49 = 0
{-7,-7}
{-7,-7}
b) x2 − 4x − 5 = 0
{-1,5}
{-1,5}
c) x2 − 5x − 6 = 0
{6,-1}
{6,-1}
d) x2 − 2x − 63 = 0
{9,-7}
{9,-7}
e) x2 + 11x + 30 = 0
{-6,-5}
{-6,-5}
f) x2 + 9x + 20 = 0
{-4,-5}
{-4,-5}
g) x2 + 9x + 18 = 0
{-6,-3}
{-6,-3}
h) x2 − 8x + 12 = 0
{6,2}
{6,2}
i) x2 − 9x + 20 = 0
{4,5}
{4,5}
j) x2 + 11x + 24 = 0
{-8,-3}
{-8,-3}
