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 = 7 and z = 8, what is the value of -4a(a - z)?
| -128 | |
| 90 | |
| -1377 | |
| 28 |