来自程小平的问题
(1)4x2-121=0(2)x2+4x-1=0.(3)x2+3=3(x+1).(4)x2-3x+34=0(5)(2-3x)(x+4)=(3x-2)(1-5x)
(1)4x2-121=0
(2)x2+4x-1=0.
(3)x2+3=3(x+1).
(4)x2-
3x+34=0
(5)(2-3x)(x+4)=(3x-2)(1-5x)
1回答
2020-03-08 15:42