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 = -3, what is the value of 5b(b - x)?
| 20 | |
| 90 | |
| -288 | |
| 45 |