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 c = 3 and x = -7, what is the value of 4c(c - x)?
| -1 | |
| 120 | |
| 216 | |
| 90 |