dear Pawan sir , can you tell an easy way to solve this problem:- 1/{x+4} -1/{x-7}=11/30
Asked by Sakshi Kapoor
| 23rd Oct, 2013,
08:24: PM
Expert Answer:
1 / ( x +4) - 1 / (x - 7) = 11 / 30
(x - 7 - x - 4) / x 2 - 3 x - 28 = 11 / 30
-11 / x 2 - 3 x - 28 = 11 / 30
x2 - 3 x - 28 = - 30
x2 - 3x + 2 = 0
x2 -2x - x + 2 = 0
x ( x - 2) - 1 ( x - 2) = 0
( x - 2) ( x - 1) = 0
x - 2 = 0 or x - 1 = 0
x = 2 or x = 1
Answered by
| 23rd Oct, 2013,
10:52: PM
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Sign Up
Verify mobile number
Enter the OTP sent to your number
Change