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y2 = x² - 2x
y1 = y2
6x - x² = x² - 2x
0 = 2x² - 8x
0 = 2x(x - 4)
x = 0 atau x = 4
Batas bawah integal = 0 dan atas = 4
Uji angka antara 0 dan 4 misal 1
y1 = 6x - x² = 6(1) - 1 = 5
y2= x² - 2x = 1² - 2(1) = -1
=
= 4(4)² - 2/3(4)³ - 0
= 64 - 2/3(64)
= 21,33 = 64/3