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Solve the following quadratic equations by factorization: (x – 5)(x – 6) = 25/(24)^2

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Question

Solve the following quadratic equations by factorization:

`(x - 5)(x - 6) = 25/(24)^2`

Sum
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Solution

We have been given that,

`(x-5)(x-6)=25/(24)^2`

`(x-5)(x-6)=25/576`

`x^2-11x+30-25/576=0`

`x^2-11x+17255/576=0`

`x^2-145/24x-119/24x+17255/576=0`

`x(x-145/24)-119/24(x-145/24)=0`

`(x-119/24)(x-145/24)=0`

Therefore,

`x-119/24=0`

`x=119/24`

or,

`x-145/24=0`

`x=145/24`

Hence, `x = 119/24 = 4 23/24` or `x = 145/24 = 6 1/24`.

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Chapter 4: Quadratic Equations - EXERCISE 4.3 [Page 4.16]

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R.D. Sharma Mathematics [English] Class 10
Chapter 4 Quadratic Equations
EXERCISE 4.3 | Q 30. | Page 4.16
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