问题
解答题
计算或解方程 (1)(2
(2)5x(x-3)=6-2x. |
答案
(1)原式=4
-273
-2 1 2 2
=4
-3 55 2
.2
(2)移项得:5x(x-3)+2(x-3)=0,
(x-3)(5x+2)=0,
x-3=0,5x+2=0,
x1=3,x2=-
.2 5
计算或解方程 (1)(2
(2)5x(x-3)=6-2x. |
(1)原式=4
-273
-2 1 2 2
=4
-3 55 2
.2
(2)移项得:5x(x-3)+2(x-3)=0,
(x-3)(5x+2)=0,
x-3=0,5x+2=0,
x1=3,x2=-
.2 5