Question

Tentukan nilai x yang memenuhi persamaan berikut ini.

a. (3^x)^x=81
b. 1/64 × 4^X × 2^X =64

Answer 1

A.27
b. tidaktau
maaf klo salah

Answer 2

A) (3^x)^x = 81
3^x^2 = 3^4
x^2 = 4
x^2 = 2^2
x = 2

b) 1/64 × 4^x × 2^x = 64
4^x × 2^x = 64 × 64
2^2x × 2^x = 2^6 × 2^6
2^3x = 2^12
3x = 12
x = 12/3 = 4