Answer:
3 Variables are [tex]x^3y, x^2, y[/tex]
Step-by-step explanation:
Given : Expression [tex]3x^3y+5x^2+y+9[/tex]
To find : How many variable terms are in the expression?
Solution :
In the expression a letter represents a variable.
In [tex]3x^3y[/tex] the variable is [tex]x^3y[/tex]
In [tex]5x^2[/tex] the variable is [tex]x^2[/tex]
In [tex]y[/tex] the variable is [tex]y[/tex]
In [tex]9[/tex] there is no variable.
i.e. In the expression [tex]3x^3y+5x^2+y+9[/tex] there are three variables.
Variables are [tex]x^3y, x^2, y[/tex]