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 = 8 and z = -1, what is the value of 8a(a - z)?
| 576 | |
| 648 | |
| 540 | |
| 126 |