Kerjakan: A) (4×-1)³ B) (2y+2)⁴

Bab Aljabar
Matematika SMP Kelas VIII

a] (4x - 1)³ = (4x)³ - 3 . (4x)² . 1 + 3 . 4x . 1² - 1³
                 = 64x³ - 3 . 16x² . 1 + 12x - 1
                 = 64x³ - 18x² + 12x - 1

b] (2y + 2)⁴ = (2y)⁴ + 4 . (2y)³ . 2 + 6 . (2y)² . 2² + 4 . 2y . 2³ + 2⁴
                  = 16y⁴ + 8 . 8y³ + 6 . 4y² . 4 + 8y . 8 + 16
                  = 16y⁴ + 64y³ + 96y² + 64y + 16

Bener gk yaaa,,, maaf jika keliru,, di koreksi kembali yaaa