Class 10 Maths · Quadratic Equations · NCERT Exercise 4.3 · Question 1

Quadratic Equations Medium

Find the nature of the roots of the following quadratic equations. If the real roots exist, find them:

Answer

(i)

D = - 31 < 0

: no real roots. (ii)

D = 0

: two equal real roots,

x = \frac{2 3}{3}

. (iii)

D = 12 > 0

: two distinct real roots,

x = \frac{3 \pm 3}{2}

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