How many different variables are in the expression 5g2−2h+9

Question

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Answer 1

There are two different variables in the expression: g and h.

Answer 2

explain your reason

Answer 3

In the expression 5g^2 - 2h + 9, the variable g appears with an exponent of 2 and the variable h appears without an exponent. Since g and h are distinct variables, they are considered as two different variables in the expression. Therefore, there are two different variables in the expression.

Answer 4

so what is one of the variables to use?

Answer 5

One of the variables you can choose to use in the expression is g. The other variable is h.