NCERT Solutions For Class 10 Maths Chapter 4 Quadratic Equations Ex 4.4

Ex 4.4 Class 10 Maths Question 1.

Find the nature of the roots of the following quadratic equations. If the real roots exist, find them:
(i) 2x² -3x + 5 = 0
(ii) 3x2 – 4√3x + 4 = 0
(iii) 2x2-6x + 3 = 0

Solution for Ex 4.4 Class 10 Maths Question 1

Solution for Ex 4.4 Class 10 Maths Question 1

Ex 4.4 Class 10 Maths Question 2.

Find the values of k for each of the following quadratic equations, so that they have two equal roots.
(1) 2x2 + kx + 3 = 0
(2) kx (x – 2) + 6 = 0

Solution for Ex 4.4 Class 10 Maths Question 2

Solution for Ex 4.4 Class 10 Maths Question 2
 

Ex 4.4 Class 10 Maths Question 3.

Is it possible to design a rectangular mango grove whose length is twice its breadth, and the area is 800 m2? If so, find its length and breadth.

Solution for Ex 4.4 Class 10 Maths Question 3

Solution for Ex 4.4 Class 10 Maths Question 3
 

Ex 4.4 Class 10 Maths Question 4.

Is the following situation possible? If so, determine their present ages.
The sum of the ages of two friends is 20 years. Four years ago, the product of their ages in years was 48.

Solution for Ex 4.4 Class 10 Maths Question 4

Solution for Ex 4.4 Class 10 Maths Question 4
 

Ex 4.4 Class 10 Maths Question 5.

Is it possible to design a rectangular park of perimeter 80 m and area 400 m2? If so, find its length and breadth.

Solution for Ex 4.4 Class 10 Maths Question 5

Solution for Ex 4.4 Class 10 Maths Question 5
 

 

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