Jawapan

2015-10-17T23:01:09+08:00
(4m^2 -2) /7m = 1
4m^2 - 2 = 7m
4m^2 - 7m - 2 = 0
(m - 2)(4m + 1) = 0

m -2 = 0
m = 2

4m +1 = 0
4m = -1
m = -1/4
1 4 1