Question

if the sum of zeroes of quadratic polynomial 3x2 -kx+6 is 3 then find the value of k

Answer 1

Hola there....

According to the question,

Sum of zeroes of polynomial 3x² - kx + 3 is 3

That means,

=> 3 = k/3

=> k = 9. ....Ans

Hope this helps....:)

Answer 2

Hi ,

Compare 3x² - kx + 6

with ax² + bx + c,

a = 3 ,

b = - k ,

c = 6 ,

According to the problem given ,

Sum of the zeroes = 3 ---( 1 )

- b / a = 3

- ( - k ) / 3 = 3

k / 3 = 3

k = 9

I hope this helps you.

: )