Question

repede, please, dau toate punctele​

Answer 1

Răspuns:

3*4^x + 2*9^x = 5*6^x

=> 3*2^2x + 2*3^2x = 5*2^x*3^x

=> 3*(2/3)^2x + 2 = 5*(2/3)^x

=> 3*(2/3)^2x - 5*(2/3)^x + 2 = 0

Let y = (2/3)^x

=> 3y^2 - 5y...

Explicație pas cu pas:

coroniță? plss

Answer 2

Răspuns:

așa a dat calculatorul ,nuștiu daca e corect...