Factoring Box Method

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Identify the error:

• found the wrong factors of ac (-18)

• factors did not add to b (7)

• first term and last term entered incorrectly in the box

• Factored out the GCF in each column and row incorrectly

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• 8

• -2

• 4

• -4

• 3

• -18

• 9

• -3

• (x+7)(x+1)

• (x-7)(x-1)

• (x+8)(x-1)

• (x-7)(x+1)

• (x+6)(x-2)

• (x-6)(x+2)

• (x-12)(x+4)

• (x+6)(x+4)

• (x+6)(x-4)

• (x-6)(x+4)

• (x-24)(x+2)

• (x+2)(x+6)