Simplify the expression. Leave your answer in terms of exponents. 
Definitions:
Q7: Solve the system by substitution. Substitute the
Q44: Suppose you have $7.20 in dimes and
Q52: Solve the system of linear equations by
Q100: For the following equation, complete the given
Q117: Perform the indicated operations. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TBX8808/.jpg" alt="Perform
Q117: Graph the inequality. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TBX8808/.jpg" alt="Graph the
Q156: Graph the solution set for the equation.
Q194: Combine the terms. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TBX8808/.jpg" alt="Combine the
Q236: Factor the trinomial. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TBX8808/.jpg" alt="Factor the
Q255: Write the expression with a positive exponent,