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I'm having trouble understanding dividing and multiplying radical expressions

0 votes

I am also confused on how to figure out if a problem equals x > 0 or x >_ 0

                                                                     

asked Jan 24, 2015 in ALGEBRA 2 by hana_24 Novice

1 Answer

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Step 1:

The expression is .

Division property of radicals : .

Rewrite the expression

Division property of radicals : .

Cancel the common terms.

Division property of radicals: .

image

image.

Option (A) is the correct answer.

Solution :

image.

answered Jan 24, 2015 by yamin_math Mentor
How do I find the domain of a radical expression?

Step 1:

The radical expression is image.

The domain of a function is all values of image, those makes the function mathematically correct.

Since there shouldn't be any negative numbers in the square root.

The expression image should be zero or positive.

image

Therefore domain of radical is  image.

Solution :

The domain of radical is  image.

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