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algII, factoring
Freakerr
post Mar 21 2005, 07:25 PM
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i'm not quite sure how to factor these..


Factor out the GCF
(m-9)(m+1)+(m-9)(m+2)
^^I know i should use the grouping method.. so would it be (m+1)+(m+2)(m-9)??
orrrrr do i need an pair of brackets? [(m+1)+(m+2)](m-9) ??

m^5(r+s)+m^5(t+u)
^^grouping in that one too.. but i sorta have an idea but it may be wrong.. answer may be (m^5)(r+s)(t+u) ??

Factoring polynomials
(a+b)^2-(a-b)^2

that's alll.. any help would be greatlyy appreciated. thank you. _smile.gif
 
 
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Levy2k6
post Mar 21 2005, 11:41 PM
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does m( -9-1) + m(-9+2) work too? man i need to remmember this stuff too.. lol.
 
innovation
post Mar 22 2005, 04:40 PM
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QUOTE(Levy2k6 @ Mar 21 2005, 11:41 PM)
does m( -9-1) + m(-9+2) work too? man i need to remmember this stuff too.. lol.
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nope, doesn't work. you can't exchange terms that are added or subtracted like that.
 

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