Jawabanmu

Jawaban paling cerdas!
2014-09-11T16:37:22+07:00
(2x + 3y) x (px + qy) = rx2 + 23xy + 12y
2px^2+3pxy+2qxy+3qy^2 = rx^2+23xy+12y^2
2px^2+xy(3p+2q)+3qy^2= rx^2+23xy+12y^2

3q=12
q=4

3p+2q=23
3p+2.4=23
3p=23-8
3p=15
p=5

r=2p
r=2.5
r=10
1 5 1