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Verified answer
Luas Daerah Dgn INtegraly = 3x² + 6x
titik pot dgn sumbu x , y = 0
3x(x +2) = 0
x = 0 atau x = - 2
luas dibatasi untuk x = 0 dan x = 2
L= ₀²∫ 3x² + 6x dx
L = [x³ + 3x²]²₀
L = (8) + 3(4)
L = 20 satuan