One way to help you remember the steps to perform mentally is to remember the acronym foil.
How to do foil math problems.
All the terms in the first binomial are combined with the terms in the second binomial properly.
By following first outer inner last we do not overlook any term in either binomial.
The idea is to expose you to different ways on how to address the same type of problem with a different approach.
References to complexity and mode refer to the overall difficulty of the problems as they appear in the main program.
You already know how to simplify an expression like 7 4x 3 right.
Using the foil method to simplify.
When used correctly this process can help you solve difficult math problems that involve squaring sets of equ.
Q 3 q 7.
Let me show a different way.
Here we are multiplying two binomials.
If you compare each step in the first example to the steps used in example 2 with the foil method you will find that they are pretty much the same.
In the main program all problems are automatically graded and.
If the first presentation on how to multiply binomials using foil doesn t make sense yet.
Multiply the binomials left 3x 7 right left 2x 1 right using the foil method.
Just use the distributive property to multiply 7 times 4x and then 7 times 3 this gives you an answer of 28x 21.