-
The roots of the equation √7x2 - 6x - 13√7 = 0 are
-
-
- √7, - 13 √7 7 -
√7, - 13 √7 7 -
- √7, 13 √7 7 - None of these
-
Correct Option: C
Given that :- √7x2 - 6x - 13√7 = 0
⇒ √7x2 - 13x + 7x - 13√7 = 0
⇒ x( √7x - 13 ) + √7( √7x - 13 ) = 0
⇒ ( x + √7 ) ( √7x - 13 )
⇒ x + √7 = 0 or √7x - 13 = 0
| ⇒ | x = - √7 | or x = | = | ||
| √7 |
| Thus, the two roots of given quadratic equation are |
| - √7 | and | . | |
