Imoutgoodbye Posted March 12, 2011 Report Share Posted March 12, 2011 So, I have a problem that looks like this: (16C^-8*D^3/C^4*D^5)^3/2. Where the division symbol is in the problem it makes it look like a fraction. Just for ease of rearranging the equation. So, here's my question and it's fairly simple, but my brain is fried and I need to move onto something else right now. Was I right to do everything inside those parentheses before I brought in the rational exponent? My answer is currently: 64/C^18*D^3. Again, the division symbol is a fraction bar still. Is that right? Link to comment Share on other sites More sharing options...
Magick Posted March 12, 2011 Report Share Posted March 12, 2011 Always do what's inside before moving on to the outside. Another way to write that equation would be: (16c^-8*d^3*c^-4*d^-5)^3/2 Simplified, it's: (16c^-12*d^-2)^3/2 So yes, you're correct. Link to comment Share on other sites More sharing options...
Kyzarius Posted March 13, 2011 Report Share Posted March 13, 2011 Yes. Order of Operations. Link to comment Share on other sites More sharing options...
Imoutgoodbye Posted March 13, 2011 Author Report Share Posted March 13, 2011 Yes. Order of Operations. *sheepishly shrugs* Had to double check. Got many rules being thrown at me each week and it's starting to get hard to keep track of everything. Sometimes I forget the basics and my answer book that I bought doesn't cover even numbered problems. Mind you, I don't look at the book until after I'm done. Link to comment Share on other sites More sharing options...
Magick Posted March 13, 2011 Report Share Posted March 13, 2011 Sometimes I forget the basics and my answer book that I bought doesn't cover even numbered problems. Usually because the odd numbered questions are of similar composition. If you answer #6, understand the hows and what's to get there (even if it has to be reverse engineered), then you should be able follow the same basic principals to answer correctly #7. It's to help you learn by guidance. To tutor without a tutor. To reinforce the principals to which you have been taught so that eventually, the basics will become second nature. Now that I've run-on forever, I'll shut up now. Felt like explaining that, regardless of how well or poorly I did so. And should you need help, feel free to PM/Email me and I'll be more than happy to. Link to comment Share on other sites More sharing options...
KRins Posted March 13, 2011 Report Share Posted March 13, 2011 Please (parenthesis) Excuse (exponents) My Dear (multiplication/division) Aunt Sally. (addition/subtraction) anything in parenthesis, any exponents, multiplication and division from left to right, addition and subtraction left to right... that's the power of the order of operations. Link to comment Share on other sites More sharing options...
Grim_Reefer Posted March 14, 2011 Report Share Posted March 14, 2011 Yeah, was about to say PEMDAS. Damn, I can't believe I still remember how to do that ****. Link to comment Share on other sites More sharing options...
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