Jawapan

2016-01-29T15:30:41+08:00
M+1/2=(2m-1)(2m-1)
m+1/2=4m²-2m-2m+1
m+1/2=4m²-4m+1
4m²-4m+1-m-1/2=0
4m²-5m+1/2=0