Jawapan

2015-08-09T21:26:51+08:00
Y = 2mx^2 + 3
 y = (m+1)x^2+x+m

2m = m+1
2m-m = 1
    m = 1 

x+m = 3 
sub m =1 into equation 
x+1 = 3
   x = 2 .