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 = 1 and z = -2, what is the value of 2b(b - z)?
| -14 | |
| -90 | |
| 6 | |
| 72 |