Question

for what value of k, the equation 4x square+5x+1k=0 has equal root ?F​

Answer 1

Step-by-step explanation:

Given: quadratic equation kx

2

+4x+1=0, has real and distinct roots

To find the value of k

Sol: An equation has real and distinct roots if the discriminant b

2

−4ac>0

In the given equation, a=k,b=4,c=1

Therefore the discriminant is 4

2

−4(k)(1)>0

16−4k>0

⟹4k<16

Therefore, k<4

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