计算题:(x^2+y)(x^2-y)-(-x)^2×(-x^2)

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/26 02:56:54
计算题:(x^2+y)(x^2-y)-(-x)^2×(-x^2)计算题:(x^2+y)(x^2-y)-(-x)^2×(-x^2)计算题:(x^2+y)(x^2-y)-(-x)^2×(-x^2)(x^2

计算题:(x^2+y)(x^2-y)-(-x)^2×(-x^2)
计算题:(x^2+y)(x^2-y)-(-x)^2×(-x^2)

计算题:(x^2+y)(x^2-y)-(-x)^2×(-x^2)
(x^2+y)(x^2-y)-(-x)^2×(-x^2)
=x^4-y^2-x^2×(-x^2)
=x^4-y^2+x^4
=2x^4-y^2