Question

If one zero of the quadratic polynomial kx2+3x+k is 2 then the value of k is

Answer 1

Answer:

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Answer 2

The value of k is $k=-\frac{6}{5}$.

Step-by-step explanation:

Given : If one zero of the quadratic polynomial $kx^2+3x+k$ is 2.

To find : The value of k ?

Solution :

The quadratic polynomial $kx^2+3x+k=0$.

One zero is 2 i.e. substitute x=2,

$k(2)^2+3(2)+k=0$

$4k+6+k=0$

$5k=-6$

$k=-\frac{6}{5}$

Therefore, the value of k is $k=-\frac{6}{5}$.

#Learn more

If the sum of the zeroes of the quadratic polynomial kx2-3x+5 is 3, find the value of k

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