Question

The total number of distinct variables in the algebraic expression $3x^4+4xy+5y+7$ is

Answer 1

In the algebraic expression $3x^4+4xy+5y+7,$
Considering each term separately we can see that,
$\bullet$ Variables: $x$ and $y$
$\bullet$ Numerical Coefficients: $3,4$ and $5$
$\bullet$ Constant: $7$

Therefore, total number of distinct variables in the given expression is $2.$