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Dallas Bryant
Mathematics
19 August, 02:30
N^2+16n+60 over 36-n^2
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Danielle Galvan
19 August, 02:39
0
Factor
36-n^2 is difference of 2 perfect squares
a^2-b^2 = (a-b) (a+b)
6^2-n^2 = (6-n) (6+n)
factor
n^2+16n+60
find what 2 numbers multiply to 60 and add to 16
factors of 60=2,2,3,5
the numbers are 10 and 6
so factored out
(x+6) (x+10)
(x+6) = (6+x)
so the equation is
[ (x+6) (x+10) ]/[ (6+x) (6-x) ]=[ (6+x) / (6+x) ] times (x+10) / ((6-x) = 1 times (x+10) / (6-x)
the answer is (x+10) / (6-x)
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