find P / Q * R?

Question

IF P=X^4 – 8x / X^2+2x-3 ,Q=X^4+4 X^2+16 / X^4+10 X^2+9 and R= X /1+X

Answer 1

Start factoring.

Substitute y = x^2 to get a quadratic you can factor, in one case.

Look at x^3 - 8 and see x^3 - 2^3.

And check whether you made a typo in the numerator to Q, because that can't be factored in any interesting ways at all.