" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
= urutan segitiga pascal 1 => Koefisien
1 1 => (pangkat 1)
1 2 1 => (pangkat 2)
1 3 3 1
jadi lihat urutan segitiga pascal
(2x - 1)²
= (( 1 2 1))
= (2x)² + 2(2x . -1) + (-1)²
= 4x² - 4x + 1
2.) (2x - 1)³
= (( 1 3 3 1))
= (2x)³ + 3((2x)² . (-1)) + 3((2x) . (-1)²) + (-1)³
= 8x³ + 3(-4x²) + 3(2x) - 1
= 8x³ - 12x² + 6x - 1