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Mathematics 8 Online
OpenStudy (anonymous):

fact by grouping pm- sm - 5p + 5s help please

OpenStudy (welshfella):

what is common to pm - sm and 5p + 5s ?

OpenStudy (anonymous):

pm and sm both have m and 5p and 5s both have 5 ?

OpenStudy (welshfella):

right so take these out and factor each part hint - be careful of the signs

OpenStudy (welshfella):

what would be the factors of pm - ps ?

OpenStudy (welshfella):

* sorry that is pm - sm

OpenStudy (anonymous):

I think it is mp - ms - 5p + 5s That is what I got but I am not sure

OpenStudy (welshfella):

that's what we need to factor

OpenStudy (anonymous):

(m-5)(p-s)????

OpenStudy (welshfella):

m(p - s) - 5(p - s) = (p - s)(m - 5)

OpenStudy (welshfella):

yes Nadia thats correct

OpenStudy (welshfella):

the order of the 2 factors does not matter (p - s)(m - 5) is the same as (m - 5)( p - s)

OpenStudy (anonymous):

yay thank you so much

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