I wanted to let you know THROUGH of this article, the most common mistakes made by many students of mathematics in solving exercises, so that you have in mind, not to fall into the same situation.
Unfortunately many students ignored the sign that anticipates the (-2), simply because they lack the proper application of the law of signs that says: (+)*(+)=+(+)*(-)=-( -)*(+)=-(-)*(-)=+ If you think you have this deficiency, do not waste time and become aware of it, I assure you that within hours of review and study will be sufficient to overcome this disadvantage. 2) Do not know how to apply the general law to solve quadratic equations. Calculate the value of the expression: x ²-4x +3 = 0 This is a quadratic equation. The common mistake is being committed is not known to the general formula and sometimes much less factor. 3) Lack of knowledge about the particularities of the number zero: They do not realize that some operations are not defined or defined to be coming to incorrect results as follows: 5 / 0 = 0 (This is incorrect, since division by zero is undefined) . 5 / 0 = 5 (incredible, but true). (This is incorrect, since division by zero is undefined). 0 / 5 = 5 (we know the correct answer is zero). 4) Problems with fractional resolution. Although it is an elemental theme, even in University mistakes in addition, subtraction, multiplication and division of fractions. 5) Problems to solve cases of factoring. This issue is considered as a basis for mathematics, as is constantly seen even after applying. I hope this article has served to wake up in the mathematical understanding and if you want to overcome these errors , just visit: http://comoaprendermatematicas.blogspot.com
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