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 = 8 and z = 7, what is the value of b(b - z)?
| 8 | |
| -4 | |
| -144 | |
| -1296 |