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Mathematics 13 Online
OpenStudy (anonymous):

Factor Completely: y2 -6y +8 Select one: a. (y-2)(y-4) b. prime c. (y+2)(y-4) d. (y+2)(y-8)

OpenStudy (shinalcantara):

what are the factors of 8 that when added will have a sum of -6?

OpenStudy (anonymous):

is it b?

OpenStudy (shinalcantara):

nope.

OpenStudy (anonymous):

its between d and a

OpenStudy (shinalcantara):

what are the two numbers that when multiplied, you'll get 8 and when added, you'll get -6. that would be the factors of the expression

OpenStudy (anonymous):

A

OpenStudy (shinalcantara):

think it over.. don't just guess

OpenStudy (shinalcantara):

yes it's A.. (-2)(-4)=8, -2-4=-6

OpenStudy (shinalcantara):

you try to recheck by expanding the factors. will you get y^2-6y+8?

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