Question

5^n-3.5^2=625

Answer 1

5ⁿ - 3 . 5³ = 625

5ⁿ - 3 . 125 = 625

5ⁿ - 375 = 625

5ⁿ = 675 + 625

5ⁿ = 1300

n = \(\varphi\)

Answer 2

5^n-3.5^2=625

5ⁿ - 3 . 5³ = 625

5ⁿ - 3 . 125 = 625

5ⁿ - 375 = 625

5ⁿ = 675 + 625

5ⁿ = 1300

n = \(\varphi\)

nhé !