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 = -4 and z = -3, what is the value of b(b - z)?
| 4 | |
| 144 | |
| 672 | |
| -216 |