Question

Find the value of k for which the roots of the quadratic equation 2xsquare+kx+8=0, will have equal value.

Answer 1

Answer:

k=8

Step-by-step explanation:

using discriminant,

a=2 b=k c=8

b^2-4ac=k^2-4×2×8

=k^2-64

for the roots to have a real value,

then b^2-4ac will be equal to 0

k^2-64=0

k^2=64

k=8

Answer 2

Step-by-step explanation:

here is your solution

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