An expression is shown below:
square root of 32 plus square root of 2
Which statement is true about the expression?
It is rational and equal to 4.
It is rational and equal to 5.
It is irrational and equal to 5 multiplied by square root of 2.
It is irrational and equal to 4 multiplied by square root of 2.

Answer :

7.07106781186 would answer the first part. The second part would be that it is irrational and equal to 5 multiplied by square root of 2.

Answer:

It is irrational and equal to 5 multiplied by square root of 2.

Step-by-step explanation:

The expression is :

[tex]\sqrt{32}+\sqrt{2}[/tex]

We can write that [tex]32=(2).(16)[/tex]

If we replace this in the expression we can distribute the square root :

[tex]\sqrt{32}+\sqrt{2}=\sqrt{(2).(16)}+\sqrt{2}=(\sqrt{2}).(\sqrt{16})+\sqrt{2}=[/tex]

[tex](\sqrt{2}).(4)+\sqrt{2}=(5).(\sqrt{2})[/tex]

The expression is equal to 5 multiplied by square root of 2.

Given that [tex]\sqrt{2}[/tex] is an irrational number, meaning that it can't be expressed as a quotient of two integer numbers, the result [tex](5).(\sqrt{2})[/tex] will be an irrational number.

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