solve the following question with explanation.
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Answer:
0 or 4 is the right answer
Step-by-step explanation:
Given x2+kx+k
roots are real & equal
∴b2−4ac=0
=(k)2−4(1)(k)=0
=k2−4k=0
=k(k−4)=0
∴ k = 0 or k = 4
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