the square root symbol
[tex] \sqrt{x} \: means \: that \: whatever \\ number \: \times itself \: that = the \\ number \: inside \: the \: symbol \: is \\ the \: answer[/tex]
[tex]so \: what \: number \: \times itself \: = 9 \\ the \: answer \: is \: 3 \\ 3 \times 3 = 9 \: therefore \: \sqrt{9 = 3} [/tex]
