Question

21
6. If one zero of the quadratic polynomial kx^2+ 3x + k is
2 then find the value of k.
​

Answer 1

The value of $k=-\dfrac{6}{5}$

Step-by-step explanation:

Let the given quadratic polynomial,

$P(X):kx^2+3x+k$

One zero of the quadratic polynomial = 2

Then find, the value of k = ?

∴ $P(X) = 0$

⇒$P(2)= k(2)^2+ 3(2) + k=0$

⇒ $k(4)+3(2)+k=0$

⇒ $4k+6+k=0$

⇒ 5k +  6= 0

⇒ 5k =  - 6

⇒  $k=-\dfrac{6}{5}$

Hence, the value of $k=-\dfrac{6}{5}$

Answer 2

Mark as Brainliest answer please my friend

♪ Answer Done ♪