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Mathematics 20 Online
OpenStudy (anonymous):

y=x(x^2+y^2)

OpenStudy (lgbasallote):

use distributive property

OpenStudy (anonymous):

should i expant first the equationinside the parenthesis? it is differential equation.

OpenStudy (lgbasallote):

where;s the differential?

OpenStudy (lgbasallote):

do you mean y' = x(x^2 + y^2)?

OpenStudy (anonymous):

yes. please help me.

OpenStudy (lgbasallote):

what methods are you familiar with? are you familiar with the bernoulli's equation?

OpenStudy (anonymous):

yes i am but why should i use bernoulli? its for physics.

OpenStudy (anonymous):

please help me. i have a confusion in using the product rule in differential.

OpenStudy (lgbasallote):

lol anything else you wanna say? =))) you're suddenly revealing a lot of new info

OpenStudy (anonymous):

nothing else i thought. how can i fairly understand product rule in DC? i try using it but i didnt arrived at the correct answer.

OpenStudy (lgbasallote):

hmm im not an expert on this field so maybe @UnkleRhaukus can provide info..

OpenStudy (anonymous):

thanks for the help. =]]

OpenStudy (unklerhaukus):

So this is your question? \[y^\prime=x(x^2+y^2)\]\[y(x)=?\]

OpenStudy (anonymous):

yes it is. please help me. to solve that.

OpenStudy (unklerhaukus):

\[y^\prime=x(x^2+y^2)=3\]?

OpenStudy (anonymous):

help me please

OpenStudy (unklerhaukus):

im not sure if i can help you

OpenStudy (anonymous):

oh. could you please try?

OpenStudy (unklerhaukus):

can you tell me where the equation has come from , what it describes

OpenStudy (anonymous):

find the derivative of the given equation. it will use product rule in differential calculus. i tried it but i attain different answer. i have a confusion by dealing with it.

OpenStudy (unklerhaukus):

oh. well now your asking something different,

OpenStudy (unklerhaukus):

This is your question\[y=x(x^2+y^2)=3\]\[y^\prime=?\]

OpenStudy (unklerhaukus):

\[y=x^3+xy^2\]\[y^\prime=3x^2+y^2+2xyy^\prime\]\[y^\prime(1-2xy)=3x^2+y^2\]\[y^{\prime}=\frac{3x^2+y^2}{1-2xy}\]

OpenStudy (anonymous):

thanks a lot @UnkleRhaukus ! you're a big help or me! More power! =]]

OpenStudy (unklerhaukus):

im still not sure what to do with the three

OpenStudy (anonymous):

it okay. youre answer has a great help for me. now i truly understand it. Thanks! 3 will become O cause its a constant. ((=

OpenStudy (unklerhaukus):

ok

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