1.

What will be the sum of b + c if the equations x^2 + bx + c = 0 and x^2 + 3x + 3 = 0 have one common root?(a) 2(b) 4(c) 6(d) 8I got this question in examination.Origin of the question is Quadratic Equations topic in division Complex Numbers and Quadratic Equations of Mathematics – Class 11

Answer»

Right choice is (C) 6

Explanation: COMPARING the coefficients of the above equation we get,

1/1 = b/3 = c/3

This means b = 3 and c = 3

Therefore, b + c = 6.



Discussion

No Comment Found

Related InterviewSolutions