This week in math 10 I learned how to factor a trinomial. Factoring trinomial‘s is the opposite of multiplying them. You do the same thing as if you were multiplying but reverse. Before we remove the brackets now we put the brackets back.
Step 1- Find the product
find factors of the last number.
Step 2- Find the sum
from the list of factor pairs find a pair that add to the middle number (10)
Step 3- Now we know the numbers so put them into the equation and your done.
Check your answer- Use Foil
to check your answer use foil and once you’re done if it is back to the original equation your answer is correct.
FOIL review-
First
Outside
Inside
Last
