Jawabanmu

2014-06-07T14:09:01+07:00
Di ssubtitusiin jadi nanti yang 3y= x^2 jadi y=x^2/3
trus masukin ke y = 8x - x² jadinya x^2/3 = 8x-x^2 >>> x^2 =24x-3x^2 >> 4x^2-24x=0
4x(x-6)=0
x-6=0 >> x=6
truss 3y=x^2
3y=36
y=12
HP=(6,12)

2014-06-07T14:09:23+07:00
Y=8x-x2 ....(1)
3y= x2 .......(2)
3(8x-x2)=x2
24x-3x2=x2
24x-4x2=0
4x(6-x)=0
x1= 0
x2= 6
Hp {0,6}