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 = 4 and z = 6, what is the value of a(a - z)?
| 12 | |
| -252 | |
| 8 | |
| -8 |