Math 10 – Week 10

This week in math we learned about factoring polynomials. I personally like to use the area model to solve these questions since it helps you to organize your work and understand the concept. When looking at a trinomial you would take the first and the last number at place it in the top left and the last number goes in the bottom right. The numbers that go in the other boxes you get by multiplying the first and last number then finding a pair that equal to the middle concept. (ex. if the first number is 2 and the last is 6 =12, then you find a pair that would equal to the middle number that is 7, so in this case you would use 3×4 since they =7) Then 3 and 4 would be placed in either of the boxes and remember to add x to them. Once all the boxes are filled you then find either the highest number that can go into both or the highest amount of x’s that can go into both, that will be written on the outside and once you have four numbers you re-write them in brackets (each side) and that is your answer. Remember that when you are finding the number that equals the middle number if one of them is a negative then you still treat the numbers that go into it negative (ex. if the 7 was a -7 then it would be -3,4 which isn’t the same as 3,4) This is what we learned in math this week.

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