Question

已知,n为正整数,x的2n次方=3,求（4x的2n次方）²-3（x³）的2n次方

Answer 1

(4x^2n)^2- 3(x^3)^2n

= 4^2 (x^2n)^2 - 3(x^2n)^3 = 16*3^2 -3*3^3 = 63