## Intermediate Algebra for College Students (7th Edition)

$x(x+1)$ or $x^2+x$
RECALL: $\log_b{x}+\log_b{y} =\log_b{(xy)}$ Use the rule above to obtain: $\log_3{[x(x+1)]}=2$ Thus, the missing expression in the given statement is: $x(x+1)$ or, when multiplied, $x^2+x$