Find excluded values: 1x2−x−12\frac{1}{x^2-x-12}x2−x−121
x=4,−3x = 4, -3x=4,−3
x=1,12x = 1, 12x=1,12
x=0x = 0x=0
x=−4,3x = -4, 3x=−4,3