BANK EPFO SSA Mock Test 2023 Quantitative Aptitude Algebra Quadratic Equation

The quadratic equation (1 + a2)x2 + 2abx + (b2 - c2) = 0 has only one root. What is the value of c2(1 + a2)?

1
a2
2
b2
3
c2
4
ab

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