What is the H.C.F of x2+2x−8,x3−4x2+4x,x2−4
x−2
x+3
x2
x+1
Factors of : x2+2x−8→(x+4)(x−2)
x3−4x2+4x→x(x−2)2
x2−4→(x+2)(x−2)
The highest common factor for the above expressions is (x−2) ∴ H.C.F = (x−2)