Answer:
[tex] \sqrt{2} \: x + 2[/tex]
Step-by-step explanation:
Let x be the variable.
[tex]Multiplied \: by \: radical \: 2 = \sqrt{2} \: x \\ increased \: by \: 2 = \sqrt{2} \: x + 2 \\ \purple{ \bold{ \therefore \: number = \sqrt{2} \: x + 2}}[/tex]