When solving an equation with two variables, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)
If c = 3 and x = 3, what is the value of 8c(c - x)?
| -18 | |
| 72 | |
| 0 | |
| -21 |