Question

怎么化简？？要详细步骤，谢谢

Answer 1

这样

Answer 2

看

Answer 3

直接
=2

追问

咋的来的

追答

Answer 4

2

追问

高一预习，不太懂，麻烦告诉一下

Answer 5

b^4+a^4+c^4-2a^2b^2-2b^2c^2-2a^2c^2 =1/2(2b^4+2a^4+2c^4-4a^2b^2-4b^2c^2-4a^2c^2) =1/2[(b^4-4a^2b^2+4a^4)+(b^4-4b^2c^2+4c^4)-(2a^4+4a^2c^2+2c^4)] =1/2[(b^2-a^2)^2+(b^2-c)^2-2(a+c)^2]。