Practice
Solve for x.a) x2 − x − 12 = 0
{4,-3}
{4,-3}
b) x2 − 15x + 54 = 0
{9,6}
{9,6}
c) x2 + 4x + 3 = 0
{-1,-3}
{-1,-3}
d) x2 + 3x − 10 = 0
{-5,2}
{-5,2}
e) x2 − 15x + 56 = 0
{7,8}
{7,8}
f) x2 + 5x − 36 = 0
{4,-9}
{4,-9}
g) x2 − 14x + 45 = 0
{5,9}
{5,9}
h) x2 − 12x + 32 = 0
{4,8}
{4,8}
i) x2 − 12x + 35 = 0
{5,7}
{5,7}
j) x2 + 4x − 21 = 0
{-7,3}
{-7,3}