已知x+5y=6,则x²+5xy+30y的值是()

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/24 03:36:38
已知x+5y=6,则x²+5xy+30y的值是()已知x+5y=6,则x²+5xy+30y的值是()已知x+5y=6,则x²+5xy+30y的值是()x²+5x

已知x+5y=6,则x²+5xy+30y的值是()
已知x+5y=6,则x²+5xy+30y的值是()

已知x+5y=6,则x²+5xy+30y的值是()
x²+5xy+30y
=x(x+5y)+30y
=6x+30y
=6(x+5y)
=6*6
=36

x²+5xy+30y
=x*(x+5y)+30y
=6x+30y
=6*(x+5y)
=6*6
=36
所以x²+5xy+30y的值是36