Factoring Trinomials: a = 1 Answers

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Which expression is the factored form of x2 – 7x + 10?

A
(x + 3)(x + 4)
B
(x – 3)(x – 4)
C
(x – 2)(x – 5)
D
(x + 2)(x + 5)
2
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Sample Response: Algebra tiles would not be a good tool to use to factor the trinomial because you would need to drag an x-squared tile, 18 x-tiles, and 80 plus tiles. That is a total of 99 tiles. It would take a lot of time to drag that many tiles on the board and there might not be enough space to hold all of them. You would also need to determine how to arrange all those tiles to make a rectangle. Since 80 is a multiple of 10, you might recognize that 10 and 8 are the factors that add to 18,

A
There are a lot of tiles to drag onto the board.
B
You would need to create a rectangle from 99 tiles.
C
80 is a multiple of 10, so it has factors of 10 and 8, which add to 18.
80152

111✔ 24264

Answers:
The value of ac is.:24
The value of b is.:11
The equivalent factored form of the polynomial is.:(x + 3)(x + 8)

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Factoring Trinomials: a = 1 Answers — Summer…