Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Algebra Quadratic Equation
For what value of k, (4 - k)x2 + (2k + 4)x + (8k + 1) = 0, is a perfect square?
1
k = 0 and k = 3
2
k = 0 and k = 4
3
k = 0 and k = -1
4
More than one of the above
5
None of the above