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5 la puterea x plus 3 =125 la puterea 2

Răspuns :

5^(x+3) = 125^2

5^(x+3) = (5^3)^2

5^(x+3) = 5^6

x+3 = 6

x = 6-3

x = 3
5⁽ˣ⁺³⁾ = 125²
5⁽ˣ⁺³⁾ = 5³⁾²
5⁽ˣ⁺³⁾ = 5⁶
x + 3 = 6
x = 6 - 3
x = 3