integral 3 sampai 0 (2x-1)pangkat 3 dx

(2x-1)³ dx
jabarin dulu
= {(2x)³ - 3(2x)²(1) + 3(2x)(1)² - (1)³} dx
= (8x³ - 12x² + 6x - 1) dx
intgralkan
= 2x⁴ - 4x³ + 3x² - x
masukan 3 dan 0
= 2(3⁴) - 4(3³) + 3(3²) - 3 - {2(0⁴) - 4(0³)+3(0²) - 0}
= 162 - 108 + 27 - 3 - 0
= 78