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2.4 – Factoring Polynomials Tricky Trinomials The Tabletop Method

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2x4 + 1x3 =11... Cross sum is11… You Win!! 21112 ProductSumProduct Find two numbers whose product is 2 Find two numbers whose product is 12 The cross sum must be 11 2x6 + 1x2 =14... Cross sum is not 11… try again 2x2 + 1x6 =10... Cross sum is not 11… try again

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15132 ProductSumProduct Find two numbers whose product is 15 Find two numbers whose product is 2 The cross sum must be 13 5x1 + 3x2 =11... Cross sum is not 13… try again3x1 + 5x2 =13... Cross sum IS 13… YOU WIN!

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38-35 ProductSumProduct Find two numbers whose product is 3 Find two numbers whose product is -35 The cross sum must be 8 3x5 + -7x1 =8... Cross sum IS 8… YOU WIN!

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12-257 ProductSumProduct Factor: ( )

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151-28 ProductSumProduct Factor:

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Homework: P AGE 109 #2, 4 – 14

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