若X的平方减Y的平方=4,求[X-Y]的平方乘以[X+Y]的平方的值

Question

求解啊~~~~~快点 谢谢了

Answer 1

[X-Y]的平方乘以[X+Y]的平方=([X-Y]乘以[X+Y])的平方=(X的平方减Y的平方)的平方＝4的平方＝16

Answer 2

x²-y²=(x+y)(x-y)
所以(x+y)²(x-y)²=[(x+y)(x-y)]²=4²=16

Answer 3

因为x2-y2=4 所以(x-y)(x+y)=x2-y2=4

Answer 4

16追问

过程0.0

Answer 5

x^2-y^2=(x-y)(x+y)
[X-Y]^2[X+Y]^2
=[(x-y)(x+y)]^2
=4^2
=16本回答被提问者采纳