Examples of the types of problems this program will solve are shown below:
(3x - 2)(-4x + 3)
(-2x + 5)(6x - 3)
This program uses FOIL to simplify the product of two binomials.
When looking at your FOIL problem, reading from left-to-right, you should see four numbers.
Those numbers are defined using variables a, b, c, and d, respectively.
Variables a, b, c, and d are not allowed to be zero. If there is no number infront of the variable, like (x + 6), then you would want to re-write it as (1x + 6). Then type in the number 1 for that variable's value.