Which of the Following Equations Is a Cubic Equation?
A) $2 x ^ { 3 } - 2 x ^ { 2 } - 5 = 0$

Multiple Choice

Which of the following equations is a cubic equation?

A) $2 x ^ { 3 } - 2 x ^ { 2 } - 5 = 0$
B) $40 x ^ { 2 } - 5 x ^ { 4 } + 2 x ^ { 3 } = 0$
C) $5 - x = 0$
D) $40 x ^ { 2 } - 5 x = 2$