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(x^2-5)^2+8(x^2-5)+16

来源：学生作业帮助网编辑：作业帮时间：2024/11/15 09:45:16

(x^2-5)^2+8(x^2-5)+16

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(x^2-5)^2+8(x^2-5)+16
(x^2-5)^2+8(x^2-5)+16

(x^2-5)^2+8(x^2-5)+16
完全平方公式：=（x^2-5+4）^2(因为16是4的平方)
=(x^2-1)^2
平方差公式 =[（x+1）(x-1)]^2
=(x+1)^2(x-1)^2
肯定对的,我也是初一的学生,最近老师也在教这一方面的
快期中考试了,大家都加油吧

答案：(x+1)*(x+1)*(x-1)*(x-1),一定没错！

由完全平方公式=(x^2-5+4)^2
=(x^-1)^2
平方差公式=[(x+1)(x-1)]^2
=(x+1)^2*(x-1)^2

(x^2-5)^2+8(x^2-5)+16
=(x^2-5+4)^2
=(x^2-1)^2
=(x+1)^2(x-1)^2

(x^2-5)^2+8(x^2-5)+16
=[(x^2-5)+4)]^2
=[x^2-1)]^2
=(x+1)^2(x-1)^2

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