问题
解答题
(1)计算:
(2)解方程:3x(x-1)=2(x-1) |
答案
(1)原式=
+(8× 1 2
)2-(32
)224
=2+32-24,
=10;
(2)3x(x-1)=2(x-1)
3x(x-1)-2(x-1)=0,
(x-1)(3x-2)=0,
x-1=0,3x-2=0,
x1=1,x2=
.2 3
(1)计算:
(2)解方程:3x(x-1)=2(x-1) |
(1)原式=
+(8× 1 2
)2-(32
)224
=2+32-24,
=10;
(2)3x(x-1)=2(x-1)
3x(x-1)-2(x-1)=0,
(x-1)(3x-2)=0,
x-1=0,3x-2=0,
x1=1,x2=
.2 3