1. use the digits -9 to 9 (only once) to create a real solution between 30 and 80. show your work to justify your answer.
2. use the digits -9 to 9 to complete the puzzle below. try all the combinations. but as you begin doing that you will realize that in some cases you are looking for factor combinations with a particular sum or difference. you will see that some numbers have to be greater than a particular value in order to produce the product you are looking for. show your work to confirm your solution.