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max2010maxim [7]
3 years ago
10

How to factor question 49

Mathematics
1 answer:
inn [45]3 years ago
6 0
64 m^2  - 9 n^2 -------(1)
 first think about squares
 what is 64 m^2 = ( 8m)^2
also what is 9n^2 = (3n)^2
so  64 m^2  - 9 n^2  = (8m)^2 - (3n)^2
                                = (8m -3n) (8m+3n) ------(2)
to check multiply (2) to get (1)
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