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In this article you will get CBSE Class 10 Mathematics chapter 4, Quadratic Equations: NCERT Exemplar Problems and Solutions (Part-III). Every question has been provided with a detailed solution. All the questions given in this article are very important to prepare for CBSE Class 10 Board Exam 2017-2018.
Find below the NCERT Exemplar problems and their solutions for Class 10 Mathematics Chapter, Quadratic Equations:
Exercise 4.3
Short Answer Type Questions
Question1.┬аFind the roots of the quadratic equations by using the quadratic formula in each of the following
Solution:
Concept used:┬аFor a quadratic equation,┬аax2┬а+┬аbx+┬аc┬а= 0, the roots are represented as:
Q. 2┬аFind the roots of the following quadratic equations by the factorisation method.
Solution.
Concept used:┬аFor a quadratic equation,┬аax2┬а+┬аbx┬а+┬аc┬а= 0, if any of its coefficient is in fractional form then we first make it integral by suitable method. After that we can find the roots of newly formed quadratic equation by factorisation method, i.e., by splitting the middle term.
