मराठी

Solve the Following Quadratic Equations by Factorization: `X^2+(A+1/A)X+1=0`

Advertisements
Advertisements

प्रश्न

Solve the following quadratic equations by factorization:

`x^2+(a+1/a)x+1=0`

Advertisements

उत्तर

We have been given

`x^2+(a+1/a)x+1=0`

`x^2+ax+1/ax+1=0`

`x(x+a)+1/a(x+a)=0`

`(x+1/a)(x+a)=0`

Therefore,

`x+1/a=0`

`x=-1/a`

or,

x + a = 0

x = -a

Hence, `x=-1/a` or x = -a

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Quadratic Equations - Exercise 4.3 [पृष्ठ २१]

APPEARS IN

आर.डी. शर्मा Mathematics [English] Class 10
पाठ 4 Quadratic Equations
Exercise 4.3 | Q 54 | पृष्ठ २१

संबंधित प्रश्‍न

In a class test, the sum of Shefali’s marks in Mathematics and English is 30. Had she got 2 marks more in Mathematics and 3 marks less in English, the product of their marks would have been 210. Find her marks in the two subjects


Solve the following quadratic equations by factorization:

(x − 4) (+ 2) = 0


Solve the following quadratic equations by factorization:

`(x+3)/(x+2)=(3x-7)/(2x-3)`


The sum of a numbers and its positive square root is 6/25. Find the numbers.


If the list price of a toy is reduced by Rs. 2, a person can buy 2 toys more for Rs. 360. Find the original price of the toy.


Determine whether the values given against the quadratic equation are the roots of the equation.

x2 + 4x – 5 = 0 , x = 1, –1


If the equation 9x2 + 6kx + 4 = 0 has equal roots, then the roots are both equal to


The sum of the square of 2 positive integers is 208. If the square of larger number is 18 times the smaller number, find the numbers.


The difference of the square of two natural numbers is 45. The square of the smaller number is 4 times the larger number. Determine the numbers.


Two natural numbers differ by 4. If the sum of their square is 656, find the numbers.


Three years ago, a man was 5 times the age of his son. Four years hence, he will be thrice his son's age. Find the present ages of the man and his son.


The product of a girl's age five years ago and her age 3 years later is 105. Find her present age.


Solve the equation using the factorisation method:

`(3x -2)/(2x -3) = (3x - 8)/(x + 4)`


The sum of the squares of three consecutive natural numbers is 110. Determine the numbers.


Solve the equation 3x² – x – 7 = 0 and give your answer correct to two decimal places.


Solve the following equation by factorization

`a/(ax - 1) + b/(bx - 1) = a + b, a + b ≠ 0, ab ≠ 0`


Solve the following equation by factorization

`(1)/(x + 6) + (1)/(x - 10) = (3)/(x - 4)`


Two pipes running together can fill a tank in `11(1)/(9)` minutes. If one pipe takes 5 minutes more than the other to fill the tank, find the time in which each pipe would/fill the tank.


Solve the following equation by factorisation :

2x2 + ax – a2= 0


By selling an article for Rs. 21, a trader loses as much per cent as the cost price of the article. Find the cost price.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×