# NCERT Mathematics Class 10 Exemplar Ch 4 Quadratic Equations Part 3

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**EXERCISE 4.3**

1. Find the roots of the quadratic equations by using the quadratic formula in each of the following:

(i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii)

Answer: (i) (ii)

(iii) (iv)

(v) (vi)

(vii)

2. Find the roots of the following quadratic equations by the factorisation method:

(i)

(ii)

(iii)

(iv)

(v)

Answer: (i) (ii) (iii)

(iv) (v)