Question

(x^2-4)/4x *(12x^4)/x+2

Answer 1

[(x^2-4)/(4x)] * [(12x^4)/(x+2)]

= [(x-2)(x+2)/(4x)] * [(12x^4)/(x+2)]

= [ (x-2)(x+2)(12x^4) / (4x)(x+2) ]
= [ (x-2)(12x^4) / (4x) ]
= [ (x-2)(12x^3) / 4 ]
= [ (x-2)(3x^3) ]