Question

is 3x^3+2x+5=0 a cubic equation?​

Answer 1

Answer:

Yes

Step-by-step explanation:

so here, it fits the cubic equation

$ax^3 + bx^2 + cx + d = 0$ where $a = 3, b=0,c=2,d=5$

So, yes, $3x^3 + 2x + 5=0$ is a cubic polynomial as in  $ax^3$, that is as long as in this equation $a=3\neq 0$