Question

for what value of k the equation 2x2+kx+2 will have real roots​

Answer 1

Answer:

2x^2+Kx+2=0

having equal roots

b^2-4ac=0

(k)^2-4*2*2=0

(k)^2=16

k=+4 or -4

Answer 2

Step-by-step explanation:

Since it has real roots.Therefore,D>_0

Using this,you will get k>_4

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