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 b = 9 and z = -2, what is the value of 4b(b - z)?
| 936 | |
| 396 | |
| -18 | |
| 1008 |