Question

plz solve this..........

Answer 1

ACCORDING TO ME ......
K IS equals to 3

Answer 2

Hey Mate !

Here is your solution :

Given,

=> 9x² + ( k + 3 )x = 0

α and β are its zeroes and ,

( α + β ) = 0

Here,

Coefficient of x² ( a ) = 9

Coefficient of x ( b ) = ( k + 3 )

Constant term ( c ) = 0

We know the relationship between zeroes and coefficients of x.

=> Sum of zeroes = -b/a

=> α + β = - ( k + 3 ) / 9

By substituting the value of ( α + β ),

=> 0 = - ( k + 3 ) / 9

=> 0 × 9 = - ( k + 3 )

=> 0 = -k -3

=> k = -3


Hence, the answer is option ( b ) -3.

==============================

Hope it helps !! ^_^