Question

if one of the zeros of the quadratic polynomial FX equal to 4 x minus 8 x minus 9 is equal in magnitude but opposite in sign of the Other find the value of k

Answer 1

GOOD EVENING FRIEND

Let α and β be the zeros of the polynomial 4x²-8kx-9

It is given that α=-β

Then, α+β=0

-b/a=0

-(coefficient of x)/coefficient of x²=0

8k/4=0

2k=0

k=0

HOPE IT HELPZ

NAZ:):)

THANK U

Answer 2

k can is 2 4 5 6 7 also