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Travka [436]
4 years ago
13

Factor this expression completely. mr + ns - nr - ms

Mathematics
1 answer:
Pavlova-9 [17]4 years ago
3 0
Greetings!

mr+ns-nr-ms
Rearrange.
mr-nr-ms+ns
Factor by grouping.
r(m-n)+s(-m+n)
Multiply the expression by -1.
r(m-n)-1(+s(-m+n))
Simplify.
r(m-n)-s(m-n)
Find the GCF.
(m-n)(r-s)

Hope this helps.
-Benjamin
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