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For what value of K the roots of the equation x^2+4x+K=0

Posted by Anurag Hukai 5 years ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 5 years ago

Answer:

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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CBSE > Class 10 > Mathematics