Question

（3a-2b）平方（-3a-2b）平方 化简

Answer 1

=[（3a-2b)(-3a-2b)][(3a-2b)(-3a-2b)]
=（4b的平方-9a的平方）的平方
=16b的四次方-36ab-81a的平方

追问

谢谢

Answer 2

（3a-2b）²（-3a-2b）²
=(3a-2b)²(3a+2b)²
=(9a²-4b²)²
=81a^4-72a²b²+16b^4

Answer 3

（3a-2b）²（-3a-2b）²
=（3a-2b）²[-(3a+2b)]²
=(3a-2b)²(3a+2b)²
=[(3a-2b)(3a+2b)]²
=(9a²-4b²)²
=81a^4-72a²b²+16b^4

追问

谢谢

Answer 4

(3a-2b)^2(-3a-2b)^2=(3a-2b)^2(3a+2b)^2=[(3a-2b)(3a+2b)]^2=(9a^2-4b^2)^2
=81a^4-72a^2b^2+16b^4

追问

谢谢

Answer 5

是两个式子还是一个式子？

追问

一个

追答

那为师傅回答的是对的：
（3a-2b）²（-3a-2b）²
=(3a-2b)²(3a+2b)²
=(9a²-4b²)²
=81a^4-72a²b²+16b^4