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Square root

Can someone help me understand the last part of the last line. How does y^3/2 = x^7 become y = 3sqrt. x^14

Thanks.
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kadin
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kadin
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1 Solution
 
Infinity08Commented:
would it help if I said that y^(1/2) = sqrt(y)
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kadinAuthor Commented:
I wish that statement helped me.

I just don't understand how that second to last equation became the last equation.

y^3/2 is 1 and 1/2
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Infinity08Commented:
>> y^3/2 is 1 and 1/2

I'm not sure what you mean by that.

How about you write y^(3/2) as (y^3)^(1/2) and work from there ? ie. :

        (y^3)^(1/2) = x^7
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jzkiddingCommented:
squaring on both sides the equation changes to

y^3 = x^14.. this yields to

y = 3sqrt. x^14

hope you can understand



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kadinAuthor Commented:
I am out of time tonight. I will have to continue this tomorrow.
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kadinAuthor Commented:
Thank you both for your help.
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Infinity08Commented:
>> Thank you both for your help.

I'm glad I could help. Although it's strange that none of my posts were selected as (part of) the answer ;)
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