Question

asking for help again to Simplify this one:
x^4-3x^2-4/x^2+1

Answer 1

factorize the numerator and what do u get?

Answer 2

you should get (x^2-4)(x^2+1)..and agen like the other problem, you have (x^2+1) on top and at the bottom,so you cancel them

Answer 3

you are left with x^2-4, which is not final yet, because you have the difference between two squares...so the final answer is (x-2)(x+2)