Recent content by ECHOSIDE
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I'm having trouble factoring this rational expression.
This was a huge help. It appears to be accurate. Thank you for taking the time to correct my elementary mistake.- ECHOSIDE
- Post #5
- Forum: Precalculus Mathematics Homework Help
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I'm having trouble factoring this rational expression.
my work so far Thank you for your response. Here is my work so far. ((a^3-b^3)/(a^2-2ab+b^2))/((2a^2+2ab+2b^2)/(9a^2-9b^2)) ((a^3-b^3)/(a^2-2ab+b^2))*((9a^2-9b^2)/(2a^2+2ab+2b^2)) ((a-b)(a^2+2ab+b^2)/(a^2-2ab+b^2))*((9a^2-9b^2)/(2a^2+2ab+2b^2))...- ECHOSIDE
- Post #3
- Forum: Precalculus Mathematics Homework Help
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I'm having trouble factoring this rational expression.
Homework Statement ((a^3-b^3)/(a^2-2ab+b^2))/((2a^2+2ab+2b^2)/(9a^2-9b^2)) Not using complex number system. Not concerned with domain. Find the quotient and put it in simplest terms. Homework Equations The Attempt at a Solution Too many to transcribe. Apparently I'm missing...- ECHOSIDE
- Thread
- Expression Factoring Rational
- Replies: 4
- Forum: Precalculus Mathematics Homework Help
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Undergrad Can irrational numbers exist on the numberline?
This thread was very helpful to me. This was a great explanation. This is the statement that allowed me to lock it into my memory. Well put, folks.- ECHOSIDE
- Post #23
- Forum: Topology and Analysis
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High School Is Using a Calculator Necessary for Solving Precalculus Problems?
I'm sorry, Olivermsun, you were correct! I did not transcribe the problem properly. Chronon, the error you suspect is the error I made when transcribing. (embarrassment!)- ECHOSIDE
- Post #12
- Forum: General Math
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High School Is Using a Calculator Necessary for Solving Precalculus Problems?
Olivermsun, your insight is brilliant - particularly your ability to get rid of the decimals in -2.6=17x! I will keep this in mind. However, I'm afraid that in this case it has produced an erroneous result. x=-13/85 does not check. The only real solution to this equation is x=-103/85. Perhaps...- ECHOSIDE
- Post #8
- Forum: General Math
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High School Is Using a Calculator Necessary for Solving Precalculus Problems?
Jack21222, perhaps I was unclear. I'm sorry about that. Olivermsun, I can give you an example. This problem took me at least 15 minutes to solve and check. 0.03x-0.02=0.2(x+0.03) Maybe it shouldn't have taken me so long. I admit that I'm not great at math.- ECHOSIDE
- Post #4
- Forum: General Math
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High School Is Using a Calculator Necessary for Solving Precalculus Problems?
I am making my way through a Precalculus text. It is not for a class, just independent study. I am doing every problem in the book. So far, I have done all of the problems without a calculator to better my arithmetic skills. This is frequently time consuming because the book isn't giving me...- ECHOSIDE
- Thread
- Calculator
- Replies: 12
- Forum: General Math
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Absolute value appears on both sides of equals sign
Mark44 and mege, thank you for your guidance. How helpful you both have been! Mege, your suggestion is wonderful. That is a skill I'm adding to my list and will not forget. This question was my first post on physicsforums.com and I am impressed by and thankful for the responses. Thank you for...- ECHOSIDE
- Post #6
- Forum: Precalculus Mathematics Homework Help
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Absolute value appears on both sides of equals sign
SOLVED 5|7-3x|+2=4|7-3x|-1 5|7-3x|=4|7-3x|-3 |7-3x|=-3 There are no solutions. Thanks, Mark44!- ECHOSIDE
- Post #3
- Forum: Precalculus Mathematics Homework Help
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Absolute value appears on both sides of equals sign
Homework Statement solve for x: 5|7-3x|+2=4|7-3x|-1 Homework Equations The Attempt at a Solution 7-3x>0 -3x>-7 x<3/7 {x|x<3/7} quantity is positive {x|x>3/7} quantity is negative I have never solved an equation with more than one absolute value quantity in it and am not sure how to start...- ECHOSIDE
- Thread
- Absolute Absolute value Sign Value
- Replies: 5
- Forum: Precalculus Mathematics Homework Help