Question

No 1.) √5 pangkat 2x+3=625
No.2) √3 pangkat 2x-3=9 pangkat x-1
brp bantuin tolong please...

Answer 1

Verified answer

Mapel : Matematika Peminatan
Kelas : X SMA
Materi : Eksponen dan Logaritma

Pembahasan :
1.

5^(2x + 3)/2 = 625
5^(2x + 3)/2 = 5⁴
(2x + 3)/2 = 4
2x + 3 = 8
2x = 5
x = 5/2

Hp : {5/2}

————————————————
2.

3^(2x - 3)/2 = 9^(x - 1)
3^(2x - 3)/2 = 3^(2x - 2)
(2x - 3)/2 = 2x - 2
2x - 3 = 4x - 4
4x - 2x = -3 + 4
2x = 1
x = 1/2

Hp : {1/2}