计算(x+2y-3z)的平方+(x-2y+3z)(x+2y-3z)

来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/13 01:35:29
计算(x+2y-3z)的平方+(x-2y+3z)(x+2y-3z)计算(x+2y-3z)的平方+(x-2y+3z)(x+2y-3z)计算(x+2y-3z)的平方+(x-2y+3z)(x+2y-3z)(

计算(x+2y-3z)的平方+(x-2y+3z)(x+2y-3z)
计算(x+2y-3z)的平方+(x-2y+3z)(x+2y-3z)

计算(x+2y-3z)的平方+(x-2y+3z)(x+2y-3z)
(x+2y-3z)^2+(x-2y+3z)(x+2y-3z)
=(x+2y-3z)[(x+2y-3z)+(x-2y+3z)]
=(x+2y-3z)(2x)
=2x(x+2y-3z)

(x+2y-3z)的平方+(x-2y+3z)(x+2y-3z)
=(x+2y-3z)(x+2y-3z+x-2y+3z)
=2x(x+2y-3z)