if a number is subtracted from twice its reciprocal the result is 7/3. find the numbers.
5 answers
help me..
let the number be x
the reciprocal of the number is 1/x
twice the reciprocal is 2/x
2/x - x = 7/3
multiply each term by 3x
6 - 3x^2 = 7x
3x^2 + 7x - 6 = 0
(3x - 2)(x + 3) 0
x = 2/3 or x = -3
the reciprocal of the number is 1/x
twice the reciprocal is 2/x
2/x - x = 7/3
multiply each term by 3x
6 - 3x^2 = 7x
3x^2 + 7x - 6 = 0
(3x - 2)(x + 3) 0
x = 2/3 or x = -3
@reiny.. thanks.. :)
Thanks too...
TY
1 answer