If the quadratic equation x^2+4x+k=0 has real and equal roots, then

(a) k < 4  

(b) k > 4  

(c) k = 4  

(d) k ≥ 4


This question is Similar same as Question 12 CBSE Class 10 Sample Paper for 2020 Boards - Maths Basic



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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.