Find the values of the variable that must be excluded for the rational expression. 
Definitions:
Q33: Find the product and simplify. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TBX8673/.jpg"
Q63: Find the product and simplify. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TBX8673/.jpg"
Q88: Simplify the expression. Assume that the variable
Q115: Evaluate the radical expression for the given
Q119: If the graph of a system of
Q176: Use the graph below to find <img
Q180: Find the product and simplify. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TBX8673/.jpg"
Q193: Add or subtract the rational expressions. Reduce
Q197: Solve the equation. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TBX8673/.jpg" alt="Solve the
Q230: Simplify the radical then approximate it to