1. (x + 7) pangkat 4 = 2. (2x - 1) pangkat 5 = pake cara yak :)

1. (x + 7)^4
(x)^4 + ( 4 × x × 7) + (7)^4
x^4 + 28x + 2401

2. (2x - 1)^5
(2x)^5 + ( 5 × 2x × (-1)) + (-1)^5
32x^5 - 10x - 1