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 x = -2, what is the value of 2a(a - x)?
| -154 | |
| 560 | |
| 80 | |
| 126 |