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 x = -8, what is the value of 7a(a - x)?
| 36 | |
| -486 | |
| 378 | |
| -112 |