怎样可以利用乘法公式运算下面的题?1.(x-2y)(x+2y)(x^2+4y^2)2.(a-1)(a+1)(a^4+a^2+1)(运算过程)

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怎样可以利用乘法公式运算下面的题?1.(x-2y)(x+2y)(x^2+4y^2)2.(a-1)(a+1)(a^4+a^2+1)(运算过程)
怎样可以利用乘法公式运算下面的题?
1.(x-2y)(x+2y)(x^2+4y^2)
2.(a-1)(a+1)(a^4+a^2+1)
(运算过程)

怎样可以利用乘法公式运算下面的题?1.(x-2y)(x+2y)(x^2+4y^2)2.(a-1)(a+1)(a^4+a^2+1)(运算过程)
.(x-2y)(x+2y)(x^2+4y^2)
=(x^2-4y^2) (x^2+4y^2)
=x^4-16y^4
.(a-1)(a+1)(a^4+a^2+1)
=(a^2-1)(a^4+a^2+1)
=a^4(a^2-1)+ (a^2-1)(a^2+1)
=a^6-a^4+a^4-1
=a^6-1
祝你学习进步!

1.(x-2y)(x+2y)(x^2+4y^2)
=(x^2-4y^2)(x^2+4y^2)
=x^4-16y^4
2.(a-1)(a+1)(a^4+a^2+1)
=(a^2-1)(a^4+a^2+1)
=a^6-1

1.(x-2y)(x+2y)(x^2+4y^2) =(x^2-4y^2)(x^2+4y^2)=x^4-16y^4
2.(a-1)(a+1)(a^4+a^2+1)=(a^2-1)(a^4+a^2+1)=a^6-1