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New simple ways to solve equations : how to solve equations by mental arithmetic, which strengthens the capicity för thinking and improves the memory
Einar Östmyren
Häftad. BoD 2018-03-15.
ISBN 9789176997680
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Förlagets beskrivning
When you have a possibility to choose the easiest and fastest method when solving an equation, your flexibility and creativity are stimulated. In this book I introduce a new formula for quadratic equations and a new method for factorising polynomials. With this method all kinds of equations with rational numbers can be solved easier and faster than with any other formula or method. But in order to solve quadratic equations containing irrational numbers, e.g. pi, a formula must be used. A comparative test showed that quadratic equations were solved much faster by using this new formula compared to the so called pq-formula. In addition all these equations could be solved by mere mental arithmetic.That is unique. Some equations containing rational numbers can even be solved by mere mental arithmetic without using pen and paper
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New simple ways to solve equations
Bokrecensioner » New simple ways to solve equations : how to solve equations by mental arithmetic, which strengthens the capicity för thinking and improves the memory
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