Тема: Mathematics Through Problem Solving - Math Goodies

Mathematics Through Problem Solving by Margaret Taplin Institute of Sathya Sai Education, Hong Kong

+/- Fractions w/ Unlike Denominators: Lesson 6: Patterns with Fractions (Find the Rule) - Duration: 16:53. Mr. Scotto the Great and Powerful 6,625 views

For the first one, you use the property that "If ab = 0, then a = 0 or b = 0". So, you write 7x - 28 = 0 OR 28x - 7 =0. Solve each of those equations, and you ll get the two values for x that you listed. For the second one, it gets a teensy tinsy bit trickier. You can expand that zero-product property for as many factors as you want, so you know that abc=0 means that either a=0, b=0, or c=0. So you can write: 2 = 0 OR x = 0 OR 3x - 2 = 0 OR The first equation has NO solutions. It s false. You can ignore it. (It s like saying "I m either the lord of the universe or I m hungry." It s still a true statement, because I m hungry!) The second and third equations have the solutions that you gave. An alternate way you can solve the second equation is to divide both sides by 2. Then you get: x(3x-2) =0 Solve like above, and you get: x = 0 OR 3x - 2 just like you got before.

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Some 31,000 troops and thousands of military vehicles are taking part in NATO s "Operation Anakonda 2016" in Poland this week. It is the largest NATO operation since the end of the Cold War and it is taking place not far from Poland s border with Russia s Kaliningrad. US generals swear it is just a "defensive" exercise and there is nothing for Russia to be concerned over. How would the US feel about a similar Russian/Chinese military exercise in Mexico? We ponder this and more in today s Liberty Report:

  • Vaccination
  • Physiotherapist''''''''s office
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Vaccination            Physiotherapist''''''''s office   [widgetkit id=189] Dentist''''''''s
 

Some 31,000 troops and thousands of military vehicles are taking part in NATO s "Operation Anakonda 2016" in Poland this week. It is the largest NATO operation since the end of the Cold War and it is taking place not far from Poland s border with Russia s Kaliningrad. US generals swear it is just a "defensive" exercise and there is nothing for Russia to be concerned over. How would the US feel about a similar Russian/Chinese military exercise in Mexico? We ponder this and more in today s Liberty Report:

6

  • Vaccination
  • Physiotherapist''''s office
  • Dentist''''s
Vaccination            Physiotherapist''''s office   [widgetkit id=189] Dentist''''s
 

Some 31,000 troops and thousands of military vehicles are taking part in NATO s "Operation Anakonda 2016" in Poland this week. It is the largest NATO operation since the end of the Cold War and it is taking place not far from Poland s border with Russia s Kaliningrad. US generals swear it is just a "defensive" exercise and there is nothing for Russia to be concerned over. How would the US feel about a similar Russian/Chinese military exercise in Mexico? We ponder this and more in today s Liberty Report:

7

  • Vaccination
  • Physiotherapist''''''''''''''''''''''''''''''''s office
  • Dentist''''''''''''''''''''''''''''''''s
Vaccination            Physiotherapist''''''''''''''''''''''''''''''''s office   [widgetkit id=189] Dentist''''''''''''''''''''''''''''''''s
 

Some 31,000 troops and thousands of military vehicles are taking part in NATO s "Operation Anakonda 2016" in Poland this week. It is the largest NATO operation since the end of the Cold War and it is taking place not far from Poland s border with Russia s Kaliningrad. US generals swear it is just a "defensive" exercise and there is nothing for Russia to be concerned over. How would the US feel about a similar Russian/Chinese military exercise in Mexico? We ponder this and more in today s Liberty Report:

  • Vaccination
  • Physiotherapist''s office
  • Dentist''s
Vaccination            Physiotherapist''s office   [widgetkit id=189] Dentist''s
 

Some 31,000 troops and thousands of military vehicles are taking part in NATO s "Operation Anakonda 2016" in Poland this week. It is the largest NATO operation since the end of the Cold War and it is taking place not far from Poland s border with Russia s Kaliningrad. US generals swear it is just a "defensive" exercise and there is nothing for Russia to be concerned over. How would the US feel about a similar Russian/Chinese military exercise in Mexico? We ponder this and more in today s Liberty Report: