Question

решить уравнение
5^x+2+5x=130

Answer 1

  +  = 130
    x + 2 + x = 130
    2x = 130 - 2
    2x = 128
    x = 128/2
    x = 64

Answer 2

5^{x+2} + 5^{x} = 130
x + 2 + x = 130
2x = 130 - 2
2x = 128
x = 128/2
x = 64