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 b = -4 and x = -2, what is the value of 9b(b - x)?
| -810 | |
| 75 | |
| 72 | |
| 126 |