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Mathematics 8 Online
OpenStudy (ja1):

Below:

OpenStudy (ja1):

OpenStudy (ja1):

I am doing simplifying radical expressions and I do not know if this question is supposed to be a joke or taken seriously?

OpenStudy (amistre64):

depends on the level of the quiz/test

OpenStudy (ja1):

It's an 8th grade test on Simplifying Radical Expressions.

OpenStudy (amistre64):

then its appropriate

OpenStudy (ja1):

I mean "10" is the simplified version already.

OpenStudy (amistre64):

simplifying a radical has to develop factoring out perfect squares :)

OpenStudy (ja1):

So: \[\sqrt{100} = \sqrt{50 * 2} = \sqrt{50} * \sqrt{2} = 5\sqrt{2}\]

OpenStudy (ja1):

That would be the simplified version so that means that the only logical solution would be 10 right?

OpenStudy (anonymous):

no it would just be 10 because the squareroot of 100 is always 10 not the 50 and the 2

OpenStudy (ja1):

Yes that's what I meant :) just needed confirmation

OpenStudy (anonymous):

the answer is 10. what you just did is incorrect because \[\sqrt{50}\] is not 5. They put these answer choices to try to confuse you

OpenStudy (ja1):

The "simplified" version is though....

OpenStudy (anonymous):

no \[\sqrt{50}\] never simplifies to 5

OpenStudy (ja1):

Not 5, \[5\sqrt{2}\]

OpenStudy (anonymous):

no the only other "simplified" way to break up \[\sqrt{100}\] would be as \[\sqrt{25*4}\] and then that would just be 5*2 which is 10... i have no idea where you are making up all of the 50 and 2 stuff

OpenStudy (anonymous):

@ses11 is right. you can only break it up if there is a perfect square

OpenStudy (ja1):

What I mean is that \[\sqrt{50}\]simplifies into \[5\sqrt{2}\]

OpenStudy (ja1):

I understand what you mean now though.

OpenStudy (anonymous):

okay i see what you are saying. sqrt(50) does simplify to 5sqrt(2) but that is not the answer for this question

OpenStudy (ja1):

Yupp that's the part I messed up on :)

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