Question

multiply & simplify :
x^2-4/x^2-1*x+1/x+2

Answer 1

Both the numerator and denominator of the first term are the difference of two squares and can be factorised:\[((x+2)(x-2)(x+1))\div((x+1)(x-1)(x+2))\]
This reduces to :\[((x+2)(x-2))\div((x-1)(x+2)\]

Answer 2

Sorry, forgot to add a closing bracket.

Answer 3

I am right?