CAT level question 8 from QA4CAT
x^3 – 18x^2 + bx – c = 0 has positive real roots, p, q and z. If geometric mean of the roots is 6, find b.
(a) 36 (b) –216
(c) 108 (d) –72
source
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CAT level question 8 from QA4CAT
x^3 – 18x^2 + bx – c = 0 has positive real roots, p, q and z. If geometric mean of the roots is 6, find b.
(a) 36 (b) –216
(c) 108 (d) –72
source
