Lauryn receives a discount on each book she purchases. The original price of each book is x dollars. She purchase 4 books for a total of (2x - 12) dollars. Factor the expression. What can you conclude about the discount?
If lauryn has purchased 4 books you have to do (2x-12)^4. Expand it to: (2x-12)(2x-12)(2x-12)(2x-12) multiply together. Then solve for x. If you need more help let me know.
