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Solve the following quadratic equation: 48x^2 – 13x – 1 = 0

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Question

Solve the following quadratic equation:

48x2 – 13x – 1 = 0

Sum
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Solution

Given: 

48x2 – 13x – 1 = 0

⇒ 48x2 – (16x – 3x) – 1 = 0 

⇒ 48x2 – 16x + 3x – 1 = 0 

⇒ 16x(3x – 1) + 1(3x – 1) = 0 

⇒ (16x + 1)(3x – 1) = 0 

⇒ 16x + 1 = 0 or 3x – 1 = 0 

⇒ `x = (-1)/16` or `x = 1/3` 

Hence, the roots of the equation are `(-1)/16` and `1/3`.

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Chapter 4: Quadratic Equations - EXERCISE 4A [Page 183]

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R.S. Aggarwal Mathematics [English] Class 10
Chapter 4 Quadratic Equations
EXERCISE 4A | Q 19. | Page 183
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