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Solve the Following Quadratic Equations by Factorization: `1/(X+4)-1/(X-7)=11/30` , X ≠ 4, 7 - Mathematics

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Question

Solve the following quadratic equations by factorization:

`1/(x+4)-1/(x-7)=11/30` , x ≠ 4, 7

Solution

We have been given

`1/(x+4)-1/(x-7)=11/30`

`(-11)/(x^2-3x-28)=11/30`

-30 = x2 - 3x - 28

x2 - 3x - 28 + 30 = 0

x2 - 3x + 2 = 0

x2 - 2x - x + 2 = 0

x(x - 2) - 1(x - 2) = 0

(x - 1)(x - 2) = 0

Therefore,

x - 1 = 0

x = 1

or,

x - 2 = 0

x = 2

Hence, x = 1 or x = 2.

  Is there an error in this question or solution?
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APPEARS IN

 RD Sharma Solution for Class 10 Maths (2018 (Latest))
Chapter 4: Quadratic Equations
Ex. 4.3 | Q: 14 | Page no. 19
 RD Sharma Solution for Class 10 Maths (2018 (Latest))
Chapter 4: Quadratic Equations
Ex. 4.3 | Q: 14 | Page no. 19
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Solve the Following Quadratic Equations by Factorization: `1/(X+4)-1/(X-7)=11/30` , X ≠ 4, 7 Concept: Solutions of Quadratic Equations by Factorization.
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