Question

QUIZ #73
Materi: Bilangan Berpangkat

Tentukan nilai x dari persamaan ini :
[tex] 2^{x+4}=8^4 [/tex]​

Answer 1

Jawaban:

2^x + 4 = 8^4

2^x + 4 = (2³)⁴

2^x + 4 = 2^12

x + 4 = 12

x = 12 - 4

x = 8

Mari kita uji

2^x + 4 = 8^4

2^8 + 4 = 8^4

2¹² = 8⁴

4096 = 4096 ( Terbukti)

Answer 2

Verified answer

Jawab:
x = 8

Penjelasan :
[tex]2^{x+4}=8^4\\2^{x+4}=(2^3)^4[/tex]
x+4 = 3(4)
x = 3(4) - 4
x = 4(3-1)
x = 4(2)
x = 8

(xcvi)