运用公式计算;(a+1)^2-(a-1)^2,(2+1)(2^2+1)(2^4+1)(2^8+1)

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运用公式计算;(a+1)^2-(a-1)^2,(2+1)(2^2+1)(2^4+1)(2^8+1)运用公式计算;(a+1)^2-(a-1)^2,(2+1)(2^2+1)(2^4+1)(2^8+1)运用

运用公式计算;(a+1)^2-(a-1)^2,(2+1)(2^2+1)(2^4+1)(2^8+1)
运用公式计算;(a+1)^2-(a-1)^2,
(2+1)(2^2+1)(2^4+1)(2^8+1)

运用公式计算;(a+1)^2-(a-1)^2,(2+1)(2^2+1)(2^4+1)(2^8+1)
(a+1)^2-(a-1)^2,
=(a+1+a-1)(a+1-a+1)
=2a×2
=4a
(2+1)(2^2+1)(2^4+1)(2^8+1)
=(2-1)(2+1)(2^2+1)(2^4+1)(2^8+1)
=(2^2-1)(2^2+1)(2^4+1)(2^8+1)
=(2^4-1)(2^4+1)(2^8+1)
=(2^8-1)(2^8+1)
=2^16-1
=65535

有一个公式是A^2-B^2=(A+B)(A-B)
把A=A+1 B=A-带到公式就可以了
又不懂得再问我,(*^__^*) 嘻嘻……

﹙a+1﹚²-﹙a-1﹚²=﹙a+1-a+1﹚﹙a+1+a-1﹚=4a;
﹙2+1﹚﹙2²+1﹚﹙2^4+1﹚﹙2^8+1﹚
=﹙2-1﹚﹙2+1﹚﹙2²+1﹚﹙2^4+1﹚﹙2^8+1﹚
=﹙2²-1﹚﹙2²+1﹚﹙2^4+1﹚﹙2^8+1﹚
=﹙2^4-1﹚﹙2^4+1﹚﹙2^...

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﹙a+1﹚²-﹙a-1﹚²=﹙a+1-a+1﹚﹙a+1+a-1﹚=4a;
﹙2+1﹚﹙2²+1﹚﹙2^4+1﹚﹙2^8+1﹚
=﹙2-1﹚﹙2+1﹚﹙2²+1﹚﹙2^4+1﹚﹙2^8+1﹚
=﹙2²-1﹚﹙2²+1﹚﹙2^4+1﹚﹙2^8+1﹚
=﹙2^4-1﹚﹙2^4+1﹚﹙2^8+1﹚
=﹙2^8-1﹚﹙2^8+1﹚
=2^16-1.

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立方差公式a^3-b^3=(a-b)(a^2+b^2+ab) 这里的1就是b那么原式=a^3-1记得采纳回答哦不懂在HI上问哦