WHAT I KNOW Find out how much you already know about the module. Write you think is the best answer to each question on a sheet of paper. At After taking and checking this short test, take note of the items that yo to answer correctly and look for the right answer as you go through this a. X d c. 4 a. -4 . d. 5 1. Simplify 4x b. 4 c. 1 2. 22 is equal to b. - 3. What is the base in the expression -(-6)®? a. 6 b. -6 c. -6 x 5 4. What is the product of x' and 2x?? a. 2x2 b. 3x2 c. 3x 5. Which of the following is true? a. (x) - $ b. 5). 57 - 2510 6. Simplify the expression 3x5. d. 22 d​