Which statement is true about the product square root of 2(5 + square root of 8)?

Question

anonymous · Answer

@Purplerainbowcherry @RatzLover95 @Angel$18

anonymous · Answer

@sloths

anonymous · Answer

are there options?

anonymous · Answer

Yes, here they are

It is rational and equal to 7.

It is rational and equal to 9.

It is irrational and equal to 4 + square root of 10.

It is irrational and equal to 4 + 5square root of 2. 


Dont know why they didnt post.. haha

anonymous · Answer

I'm pretty sure its the last one

anonymous · Answer

Why?

anonymous · Answer

Need a little more info than, I think its the last one.. haha

anonymous · Answer

Can you help with a few more problems after this one?

anonymous · Answer

ok i'll try to explain best i can
so you distribute the root 2 first which gives you$$\sqrt{10}+\sqrt{16}$$
then you find the root of 16, which is 4 which then gives you $$4\sqrt{10}$$
Then since 10 doesn't have a root you simplify it, giving you a final answer of $$4+5\sqrt{2}$$

anonymous · Answer

I'm a bit busy but i could take a look

anonymous · Answer

Gotcha. Sounds good.

anonymous · Answer

Simplify. 4 square root of 2 end root plus 7 square root of 2 end root minus 3 square root of 2

2 square root of 8

8 square root of 2	

8 square root of 6

6 square root of 8

anonymous · Answer

Simplify. 4 square root of 2 end root plus 7 square root of 2 end root minus 3 square root of 2

2 square root of 8

8 square root of 2	

8 square root of 6

6 square root of 8

anonymous · Answer

Those two

anonymous · Answer

they're the same question

anonymous · Answer

hold on ill look at them

anonymous · Answer

looks like this?$$4\sqrt{2}+7\sqrt{2}-3\sqrt{2}$$

anonymous · Answer

Correct.

anonymous · Answer

sure. that one you just add the outside numbers basically. so its 4+7-3 which equals 8 and then you put the root 2 on the end. your answer is $$8\sqrt{2}$$

anonymous · Answer

Sweet! I put in the last problem I needed help with above. :) :p

anonymous · Answer

I only see two questions, the ones i already answered

anonymous · Answer

One second

anonymous · Answer

Which statement is true about the difference square root of 7 - square root of 28?

It is rational and equal to -2.

It is rational and equal to 0.

It is irrational and equal to -2square root of 7.

It is irrational and equal tosquare root of 7

anonymous · Answer

looks like this? $$\sqrt{7}-\sqrt{28}$$

anonymous · Answer

No, |dw:1406840811533:dw|