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the square root ot twice a number is 4 .find the number

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Answer:

8

Step-by-step explanation:

Let the number be x.

[tex]\rm \sqrt{2x} = 4[/tex]

Raise both sides of the equation by 2.

[tex]\rm (\sqrt{2x} )^2 = 4^2[/tex]

[tex]\implies \rm 2x = 16[/tex]

[tex]\implies \rm x = \frac{16}{2}[/tex]

[tex]\boxed{\rm x = 8}[/tex]

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