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$Old$ March 18th, 2009, 02:04 PM

Riana07 $Riana07 is offline$

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$Exclamation$ How do i factor this:a(y-4)+s(y-4)

please explain how to do this STEP BY STEP

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$Old$ March 18th, 2009, 02:08 PM

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please explain how to do this STEP BY STEP

Use the distributive law: ab+ cb= (a+c)b so a(y- 4)+ s(y- 4)= ?

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$Old$ March 18th, 2009, 02:11 PM

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Use the distributive law: ab+ cb= (a+c)b so a(y- 4)+ s(y- 4)= ?

i don't understand

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$Old$ March 18th, 2009, 02:21 PM

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i don't understand

Hi Riana07

$a(y-4)+s(y-4)$

Can you see that you have two terms in the above expression?

Each term has the factor $(y-4)$

If you use the distributive property as HallsofIvy suggested, you could factor out this common factor to get:

$(y-4)(a+s)$

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