When looking at your FOIL problem, reading from left-to-right, you will see four numbers.These four 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 are no numbers in front of the variable x, like (x + 6), then you would want to re-write it as (1x + 6). Then type in the value of "one" for that variable's value.
Type each of your values into the boxes below.
Var a =
Var b =
Var c =
Var d =
The examples below show you how to input the values from your FOIL problem in to the boxes provided for each variable.
FOIL: (2x + 3)(-4x - 6)
FOIL: (5x - 2)(7x + 4)
Below is a link to another website that can FOIL problems of the type: (x + 4)(x +7)