Jawabanmu

2014-04-05T11:08:36+07:00
Y=x²-3x;y-x=0

y=x

y=x²-3x
x=x²-3x
0=x²-3x-x
0=x²-4x
0=x(x-4)
x=0;x=4

 \int\limits^4_0 { x^{2} -4x} \, dx

=[(1/3)x³-2x²]batas atas 4/batasbawah0
=[(1/3)4³-2(4)²]-[0]
=64/3-32
=-10 2/3 atau 10 2/3 sorry agak lama