Question

if the sum of zeroes of the quadratic polynomial 3x square -kx+6 is 3, find the value of k.​

Answer 1

Answer:

2²+(3x-2x)....................

Answer 2

Given:-

• p(x) = 3x²-kx+6
• α+β = 3

to find:-

• value of k

solution:-

$\sf\dfrac{-b}{a}$ = α+β

$\sf\dfrac{-(-k)}{3}$ = 3

$\sf\dfrac{k}{3}$ = 3

${\boxed{\sf k = 9.}}$