Kunci Jawaban Matematika Kelas 9 Halaman 30 31 32: Cara Hitung Pembagian Pada Perpangkatan

d. ((3 x 5^4)/5^3) – 15
= 3 x 5 – 15
= 15 - 15
= 0

e. (4^5 : 4^4) – (2^4 : 2^3) x 6
= 4 – 2^4/2^3 x 6
= 4 – 2 x 6
= -8

Soal Nomor 4

a. (1/2)^(-5), (1/2)^(-2) . 2^(-3), 1/(32)^-1

b. 1/p^-3, 1/(p x p x p)^-1, 1/p^(-2) . p^(-1)

Soal nomor 5

a. s^11/s^7 = s^n
s^4 = s^n
4 = n
n = 4

b. 3^4 = n x 9
81 = n x 9
n = 81/9
n = 9

Soal nomor 6

a. 5^m/5^n = 5^4
5^(m-n) = 5^4
m-n = 4