Question

What is the value of k for which the quadratic equation 3x-kx+k=0 has equal roots?

Answer 1

Answer:

k=12

Step-by-step explanation:

for equal roots D=0,than,

0=b^2-4ac

hence,

k^2-4×3×k=0

k^2-12k=0

k(k-12)=0

k-12=0

therefore,k=12

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