# What is the domain of 7x^3 + 5x^2 ?

## I understand that the domain is like the way the line is continuing through 'x' or something similar like that but I'm not sure what the domain of this would be. Would it be all real numbers?

Jun 28, 2017

The Domain is all real numbers

#### Explanation:

This is a simple question. Domain means the possible value of x which will result in a real solution to the equation.So, intuitively the domain of this function is set of all real numbers R.

Jun 28, 2017

Yes all are real numbers except from $0$

#### Explanation:

The domain of $7 {x}^{3} + 5 {x}^{2}$

domain $x$ = integers except from zero

Reason $7 {x}^{3} + 5 {x}^{2}$, when $x = 0$

$7 {\left(0\right)}^{3} + 5 {\left(0\right)}^{2}$

$7 \left(0\right) + 5 \left(0\right)$

$0 + 0$ $\to$ null