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 a = -1 and x = 8, what is the value of -5a(a - x)?
| -45 | |
| -84 | |
| 42 | |
| 80 |