初二解方程(48x+36)(57x+39)-(57x+45)(48x+36)=0
问题描述:
初二解方程(48x+36)(57x+39)-(57x+45)(48x+36)=0
答
用乘法分配率做此题.(48x+36)*(57x+39-57x-45)=0(48x+36)*(-6)=0-4x-3=0解得x=-3/4
初二解方程(48x+36)(57x+39)-(57x+45)(48x+36)=0
用乘法分配率做此题.(48x+36)*(57x+39-57x-45)=0(48x+36)*(-6)=0-4x-3=0解得x=-3/4