已知x^6=2,求(3x^9)^2-(4x^4)^6的值

问题描述:

已知x^6=2,求(3x^9)^2-(4x^4)^6的值

(3x^9)^2-(4x^4)^6
=9x^18-4^6x^24
=9*2^3-4^62^4
=72-65536
=-65464