Question

2. Which of the following expressions would need parenthesis?

A. 4 times the difference of a number and 8
B.15 less than a number multiplied by 12
C. 6 diminished by a numberB.15 less than a number multiplied by 12
D. 4 times a number​

Answer 1

Expression A

Step-by-step explanation:

Expression A would need to have parenthesis. Mainly because it needs to multiply the difference of two numbers by 4, meaning that you need to perform the subtraction of 8 and a number before multiplying. Without the parenthesis, the 4 will multiply the number first and then that product will be subtracted by 8. Expression B is similar but since the subtraction occurs on the product of the number and 12, then the multiplication process will occur first regardless of parenthesis. Therefore, the proper expression for A would be...

A. 4 * (x-8)