tmua 2016 Q13

tmua · Uk · paper1 1 marks Curve Sketching Number of Solutions / Roots via Curve Analysis

How many real roots does the equation $3 x ^ { 5 } - 10 x ^ { 3 } - 120 x + 30 = 0$ have?
A 1 B 2 C 3 D 4 E 5

& C & 13 & E

How many real roots does the equation $3 x ^ { 5 } - 10 x ^ { 3 } - 120 x + 30 = 0$ have?

A 1
B 2
C 3
D 4
E 5