The FOIL method
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now time for you to practice
(if you have any questions, you can ask me)
In another form of question you might get only what the anwer was in the first one. x^2 +10x+9. you need to solve the equation by making an x
(sry its kinda messy)
the picture in the definition shows how to solve the equation going forwards. It is labeled F for the first step O for the 2nd step and so on
the going forwards equation would be: x^2 + 1x +9x +9. Now you need to combine like terms and that is your anwer for going forwards. x^2 +10x +9.
(x+5) (x-6)
x^2 -6x +5x -30
