Question

Tìm x biết:

\(\sqrt{2x-3}\) + 13 = 16

Answer 1

`\sqrt(2x - 3) + 13 = 16`

`\sqrt(2x - 3) = 16 - 13`

`\sqrt(2x - 3) = 3`

`(\sqrt(2x-3))^2 = 3^2`

`2x - 3 = 9`

`2x = 9 + 3`

`2x = 12`

`x = 12 : 2 = 6`