Jawabanmu

2014-08-09T16:14:02+07:00
Rx^2 + 23 xy +12y^2

2px^2 +(3p+2q) xy + 3qy^2

3q= 12..... q=4


3p+8=23
p=5

2p=r
2*5 =r
r=10
3p+2q=23
1 5 1