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 = 6 and z = 4, what is the value of 2a(a - z)?
| 42 | |
| 120 | |
| -720 | |
| 24 |