RS Aggarwal - Mathematics

Book: RS Aggarwal - Mathematics

Chapter: 10. Quadratic Equations

Subject: Maths - Class 10th

Q. No. 31 of Exercise 10A

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31

Solve each of the following quadratic equations:

√2x2 + 7x + 5√2 = 0


Using the splitting middle term - the middle term of the general equation is divided in two such values that:


Product = a.c


For the given equation


=


And either of their sum or difference = b


= 7


Thus the two terms are 5 and 2


Sum = 5 + 2 = 7


Product = 5.2 = 10








Hence the roots of equation are


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