Question

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 .

Answer 1

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

Explanation:

Answer 2

`√(18) + √(2) \\ \\ = √(9*2)+ √(2) \\ \\ = √(9) √(2)+ √(2) \\ \\ =3 √(2)+ √(2) \\ \\ =4 √(2)`

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