Question

Bantuin kak pliss penyelesaiannya gimana.. kak tolong guru mtk minat kami kaya gitu

Answer 1

Verified answer

Misalkan 3^2x=y
(3^2x)²-10.3^2x.3²+729=0
y²-90y+729=0
(y-81)(y-9)=0
y=81 atau y=9
3^2x=81
3^2x=3⁴
2x=4
x=2
3^2x=9
3^2x=3²
2x=2
x=1
HP={1,2}