If bx2 + cx + a = 0 has real and different roots, then
Explanation:
Roots of a quadratic equation (ax2 + bx + c = 0) are real and unequal when discriminant is > 0.
i.e., D = b2 – 4ac > 0
Since roots of bx2 + cx + a = 0 are real.
∴ D = c2 – 4ba > 0
Hence, option (b).
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