CAT level question 3 from QA4CAT
If x^4 – 8x^3 + ax^2 – bx + 16 = 0 has positive real roots, find a – b.
(a) –8 (b) 6
(c) –12 (d) –14
source
CAT level question 3 from QA4CAT
If x^4 – 8x^3 + ax^2 – bx + 16 = 0 has positive real roots, find a – b.
(a) –8 (b) 6
(c) –12 (d) –14
source