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Geometry of Linear Algebra as presented by MIT OCW
http://www.youtube.com/watch?feature=player_embedded&v=uNKDw46_Ev4
This is final exams week for students at ITT Technical Institute. If any of you math students need help with preparing for your final exam you can check here in our FORUM. Here you can help each other. If you need to know how a formula works just ask. If you need a formula for something and you have forgotten or cannot find it in your text, just ask. Mr. Trent and other students will be in the FORUM to help out. Good luck to you on your final exams.
Order of Operations
One of the most important things to learn in algebra is the "order of operations". This is how we determine what to do first, second, third and so on. If you don’t follow the proper order of operations then you will usually get the wrong answer. I say usually because sometimes you can luck out and get the right answer even following the wrong order.
There is a phrase that many students help them to remember the “order of operations". It is Please Excuse My Dear Aunt Sally. “P” is for parenthesis, “E” is or exponent, “M” is for multiplication, “D” is for division, “A” is for addition and “S” is for subtraction. Follow this order and you won’t go wrong.
There is a common problem that I see many students have with this. Often whenever they see parenthesis in their problem, they want to multiply. The parenthesis, in the order of operations, actually means to do what is inside the parenthesis. You may have (X + 3) which leaves you with not being able to do anything inside the parenthesis. Then you move on to exponents. But, if you have (X+3 – 7) then you combine the plus 3 and the minus 7.
If you have any questions about the “order of operations”, please leave me a reply here, I will respond.
, sometimes written as Pi, is approximately equal to 3.14159... Each year, Pi Day is celebrated on March 14 by math enthusiasts around the world. You have been selected to explore the meaning of Pi and to celebrate Pi Day through online activities.
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With many algebra problems, factoring is required to solve it. So here are my 6 steps to factoring a binomial or a trinomial. Just always bear in mind that some problems cannot be factored.
I hope this step-by-step method works for you. Let me know if you have any questions.
Jerome Trent
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