wScott said:I don't even know where to start with this question, someone help please.
I don't know how to LaTeX this question so please bare with me:
( ( x / y ) - ( 4y / x ) ) / (x + 2y)
It's two fractions over a binomial.
Hope this isn't to unclear :(
Please, don't show COMPLETE solution. You can guide him, and should let the OP do it him/herself. Showing solutions can be good in some cases, like when the OP has made a great deal of effort trying to solve the problem, but still cannot get the correct answer. But showing solution without any explanation, or without the OP's having shown his/her work, it can be very bad.Gablar16 said:dont know if this is right but it looks good to me
First find the comon denominator in the top fraction
{(x^2-4y^2)/(xy)}/(x+2y)
multiply by the inverse
(x^2-4y^2)/(x^2y+2xy^2)
then diference of squares?
(x+2y)(x-2y)/(xy)(x+2y)
then cancel
(x-2y)/xy
Anyone know a good LaTeX tutorial? I would likke to post more and using LaTeX is just so much prettier :)
VietDao29 said:Please, don't show COMPLETE solution. You can guide him, and should let the OP do it him/herself. Showing solutions can be good in some cases, like when the OP has made a great deal of effort trying to solve the problem, but still cannot get the correct answer. But showing solution without any explanation, or without the OP's having shown his/her work, it can be very bad.
You can take some time to readhttps://www.physicsforums.com/showthread.php?t=28.
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There's a sticky Introducing LaTeX Math Typesetting in the board Math & Science Tutorials (the first board from the top). There are 3 pretty good .PDF files there.
To solve a division problem with variables, you need to rearrange the equation so that the variable is isolated on one side of the equal sign. Then, you can divide both sides by the coefficient of the variable to solve for its value.
Yes, you can divide variables with different exponents. When dividing variables with exponents, you simply subtract the exponents from each other and keep the base the same. For example, x^4 / x^2 = x^(4-2) = x^2.
In this case, you can simplify the equation by canceling out the common variable terms. This will leave you with an equation that only contains numerical coefficients. You can then solve the equation as you would a regular division problem.
No, it is not possible to divide a variable by zero. This is because division by zero is undefined and leads to an infinite result. In mathematical notation, this would be represented as x/0 = undefined.
When dividing negative variables, it is important to remember the rules of multiplying and dividing with negative numbers. A negative variable divided by a positive variable will result in a negative answer, while a negative variable divided by a negative variable will result in a positive answer.