Given: (color(brown)((x^2)^(-3))color(red)((x^-2)))/(color(blue)((x^2)^(-4)))(x2)−3(x−2)(x2)−4
color(brown)((x^2)^-3) = x^-6 = 1/x^6(x2)−3=x−6=1x6
color(red)((x^-2)) = 1/x^2(x−2)=1x2
1/(color(blue)((x^2)^-4))=1/x^-8=x^81(x2)−4=1x−8=x8
(color(brown)((x^2)^(-3))color(red)((x^-2)))/(color(blue)((x^2)^(-4)))=color(brown)((x^2)^-3)xxcolor(red)((x^-2))xx1/(color(blue)((x^2)^-4))(x2)−3(x−2)(x2)−4=(x2)−3×(x−2)×1(x2)−4
color(white)("XXXXXXXX")=1/x^6xx1/x^2xxx^8/1XXXXXXXX=1x6×1x2×x81
color(white)("XXXXXXXX")=x^8/x^8XXXXXXXX=x8x8
color(white)("XXXXXXXX")=1XXXXXXXX=1