Question

1. (5.) Find original function and reduced form f(x) = 3(x-1) (x+2) / (x-4) (x+2)

Answer 1

Original function

$$f(x)=\dfrac{3(x-1)(x+2)}{(x-4)(x+2)}, x\not=-2, x\not=4$$

Reduced form

$$f(x)=\dfrac{3(x-1)}{x-4}, x\not=-2, x\not=4$$