4t+8-(3/2)t^2=0 解方程

问题描述:

4t+8-(3/2)t^2=0 解方程

4t+8-(3/2)t^2=0
8t+16-3t^2=0
3t^2-8t-16=0
(3t+4)(t-4)=0
t=-4/3或t=4

3t^2-8t-16=0
1 -4
t
3 4
(t-4)(3t+4)=0
t1=4, t2=-4/3

3t^2-8t-16=0
(3t+4)(t-4)=0
t=-4/3 or 4