Question

Hcf of x³+1 and x²-1 will be ​

Answer 1

Answer:

f(x)=(x² -1)/(x³ -1), factorize the given function

Because [x²-1=(x-1)(x+1),(x³-1)=(x-1)(x²+x+1)]

»f(x)=(x-1)(x+1)/(x-1)(x²+x+1),

and put x=1we get, f(x)=(1+1)/(1²+1+1)=2/3Ans