NCERT Class 10 Maths Solutions Chapter - 4 Quadratic Equations, Ex - 4.3

Ex - 4.3

Question 1.
                

Solution




Question 2.  Find the roots of the quadratic equations by applying the quadratic formula.
  

Solution



Question 3.
                 

Solution




Question 4.
           

Solution



Question 5.
              

Solution



Question 6.
           

Solution



Question 7.
              

Solution



Question 8.
              

Solution



Concept Insight: Use the relation s =d/t to crack this question and remember here distance is constant so speed and time will vary inversely.

Question 9.
      

Solution




Question 10.
           

Solution



Question 11.
              

Solution

Ex-4.4