Practice
Solve for x.a) x2 + 3x − 4 = 0
{1,-4}
{1,-4}
b) x2 − 5x + 4 = 0
{1,4}
{1,4}
c) x2 + 6x − 16 = 0
{-8,2}
{-8,2}
d) x2 + 6x + 8 = 0
{-4,-2}
{-4,-2}
e) x2 − 14x + 48 = 0
{8,6}
{8,6}
f) x2 + x − 56 = 0
{-8,7}
{-8,7}
g) x2 − 2x − 15 = 0
{5,-3}
{5,-3}
h) x2 − 9x + 14 = 0
{2,7}
{2,7}
i) x2 + 8x − 9 = 0
{1,-9}
{1,-9}
j) x2 − 8x + 15 = 0
{3,5}
{3,5}