12x^2-11x-5=0
问题描述:
12x^2-11x-5=0
答
12x^2-11x-5=0
(3x+1)(4x-5)=0
x=-1/3或x=5/4
12x^2-11x-5=0
12x^2-11x-5=0
(3x+1)(4x-5)=0
x=-1/3或x=5/4