Practice
Solve for x.a) x2 + 6x − 7 = 0
{-7,1}
{-7,1}
b) x2 − 14x + 49 = 0
{7,7}
{7,7}
c) x2 − 7x − 8 = 0
{8,-1}
{8,-1}
d) x2 − 8x + 7 = 0
{1,7}
{1,7}
e) x2 − 2x − 15 = 0
{-3,5}
{-3,5}
f) x2 + 5x − 36 = 0
{4,-9}
{4,-9}
g) x2 + 3x − 40 = 0
{-8,5}
{-8,5}
h) x2 − 15x + 56 = 0
{8,7}
{8,7}
i) x2 + 13x + 36 = 0
{-9,-4}
{-9,-4}
j) x2 + 10x + 24 = 0
{-6,-4}
{-6,-4}