36(m+n)^2-16(m-n)^2
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36(m+n)^2-16(m-n)^2
36(m+n)^2-16(m-n)^2
36(m+n)^2-16(m-n)^2
36(m+n)^2-16(m-n)^2
=(6m+6n+4m-4n)(6m+6n-4m+4n)
=(10m+2n)(2m+10n)
=4(5m+n)(m+5n)
36(m+n)^2-16(m-n)^2
=[6(m+n)]²-[4(m-n)]²
=(6m+6n+4m-4n)(6m+6n-4m+4n)
=(10m+2n)(2m+10n)
=4(5m+n)(m+5n)
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