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square root of 18 plus square root of 2 Which statement is true about the expression? (1 point) It is rational and equal to 3. It is rational and equal to 4. It is irrational and equal to 3 multiplied by the square root of 2 . It is irrational and equal to 4 multiplied by the square root of 2 .

Respuesta :

[tex] \sqrt{18} + \sqrt{2} \\ \\ = \sqrt{9*2}+ \sqrt{2} \\ \\ = \sqrt{9} \sqrt{2}+ \sqrt{2} \\ \\ =3 \sqrt{2}+ \sqrt{2} \\ \\ =4 \sqrt{2} [/tex]

Since square root of 2 is irrational the overall expression is also irrational. Fourth option gives the correct answer 
khunjmc

Answer:

It is irrational and equal to 4 multiplied by the square root of 2.

Step-by-step explanation:

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