Question

if 2 is a zero of the quadratic polynomial x square - 3 x + k then the value of k is​

Answer 1

Step-by-step explanation:

x²-3x+k=0

2²-3(2)+k=0

4-6+k=0

-2= -k

therefore,k=2

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Answer 2

Answer:

2

Explanation:

Given :

• 2 is a zero of quadratic polynomial

To Find :

• Value of k

Solution :

Let the given polynomial be:-

$\sf{}p(x)= x^2 - 3x + k$

[putting x = 2]

$\sf{}p(2)= (2)^2 - 3(2) + k$

$\Rightarrow 0= \sf{}2\times 2-6+k$

$\Rightarrow \sf{}0=4-6+k$

$\Rightarrow \sf{}0=-2+k$

$\Rightarrow \sf{}k=2$

Therefore value of k is equal to 2