Question

x square - 4 x + K is equal to zero find the value of k​

Answer 1

Answer:

Step-by-step explanation:

The value of k must be less than or equal to 4.

Step-by-step explanation:

The given quadratic equation is

A quadratic equation  has real roots if

We have,

Divide both sides by 4.

Therefore the value of k must be less than or equal to 4.

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