Question

using factor theorem prove that x^2-4 is a factor of x^3-3x^2-4x+12​

Answer 1

Step-by-step explanation:

his isolated idusbs727725362829266262-2

Answer 2

Step-by-step explanation:

x²-4=x²-2²=(x-2)(X+2)

Now

p(2)=2³-3×2²-4×2+12=8-12-8+12=0

&

p(-2)=(-2)³-3×(-2)²-4×(-2)+12=8-12+8+12=16

since p(-2) is not equal to 0

x²-4 is not the factor of x³-3x²-4x+12