Question

Rozwiąż równanie
3^{2x+2} + 3^{2x} = 30

Answer 1

Answer 2

3^2x * 3^2 + 3^2x =30
3^2x ( 9 +1 ) = 30 /:10
3^2x = 3 ^1
2x = 1 /:2
x=0,5