Question

(12x-4mũ3)x8 mũ 3 =4x 8 mũ bốn

Answer 1

(12x - 4³) . 8³ = 4 . 8⁴

(12x - 64) . 512 = 4 . 4096

(12x - 64) . 512 = 16 384

(12x - 64) = 16 384 : 512

(12x - 64) = 32

12x = 32 + 64

12x = 96

x = 96 : 12

x = 8

Answer 2

(12x - 4³) . 8³ = 4 . 8⁴

(12x - 64) . 512 = 4 . 4096

(12x - 64) . 512 = 16 384

(12x - 64) = 16 384 : 512

(12x - 64) = 32

12x = 32 + 64

12x = 96

x = 96 : 12

x = 8