计算(2m²-n)²(2m²+n)²(要有过程)!

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计算(2m²-n)²(2m²+n)²(要有过程)!

计算(2m²-n)²(2m²+n)²(要有过程)!
计算(2m²-n)²(2m²+n)²(要有过程)!

计算(2m²-n)²(2m²+n)²(要有过程)!
答:
(2m²-n)²(2m²+n)²
=[(2m²-n)(2m²+n)]²
=(4m^4-n²)²
=16m^8-8(m^4)n²+n^4

(2m²-n)²(2m²+n)²
=[(2m²-n)(2m²+n)]²
=[(4m⁴-n²)]²
=16m⁸-8m⁴n²+n⁴