fx x2 x2 x23x4 Solutionfx x2x 2x23x4 fxx2x1x4x1 Denominat

Solution

f(x) = (x²+x -2)/(x²-3x-4)

f(x)=(x+2)(x-1)/(x-4)(x+1)

Denominator should not be zero

(x-4)(x+1)=0

x=4, x=-1

Domain (- infinity,-1)U(-1,4)U(4,infinity)

Range

There is no restriction on y.

Therefore range (-infinity,infinity)