Question

Tìm x: \(4,7+3\sqrt{x}=5,9\)

Answer 1

\(4,7+\text{3√x =5,9}\)

=> \(\text{3√x=5,9- 4,7}\)

=>\(3\text{√}x=1,2\)

=>\(\text{√}x=1,2:3\)

=>\(\text{√}x=0,4\)

=>\(x=0,4^2=0,16\)

Answer 2

4,7 + 3\(\sqrt{x}\) =5,9

3\(\sqrt{x}\) =5,9 - 4,7

3\(\sqrt{x}\) = 1,2

\(\sqrt{x}\) = 1,2 : 3

\(\sqrt{x}\) = 0,4

( \(\sqrt{x}\) )² = 0,4²

x = 0,16