The expression is simplified to give 4x( 1/x² - 12x - 18)
Algebraic expressions are mathematical expressions that involve variables, constants, and mathematical operations.
To simply the expression, we have that;
4x divided by

This is written as;
4x/

Now, we have to factorize the common terms, we have the common factor is 4x, so we have that;
4x ( 1/x² - 12x - 18)