State whether the following quadratic equations have two distinct real roots. Justify your answer. 3x2 – 4x + 1 = 0 - Mathematics

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Sum

State whether the following quadratic equations have two distinct real roots. Justify your answer.

3x2 – 4x + 1 = 0

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Solution

The equation 3x2 – 4x + 1 = 0 has two real and distinct roots.

D = b2 – 4ac

= (–4)2 – 4(3)(1)

= 16 – 12 > 0

Hence, the roots are real and distinct.

Concept: Nature of Roots of a Quadratic Equation
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APPEARS IN

NCERT Mathematics Exemplar Class 10
Chapter 4 Quadatric Euation
Exercise 4.2 | Q 1.(iv) | Page 38
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