Math, asked by chamiapwe2, 9 months ago

The value of k for which the roots of the equation x^2+4x+k=0 are real is 1. k=4
2. k˂4
3. k˃4
4. k⦤4

Answers

Answered by jtg07
8

Step-by-step explanation:

if the roots are real then discriminant should be greater than 0

=> d>_0

=] b²-4ac > 0

=] 16- 4k > 0

=] 16 > 4k

4>k

thus,

option 4 k is less than equal to 4 is correct...

it is because when discriminant is equal to 0.

roots are still real ...

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