(4m+5n)^2+(5m+4n)^2 =?
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=16M^2+25N^2+40MN+25M^2+16n^2+80MN
=41M^2+41N^2+80MN
=41M^2+41N^2+80MN
jobanputraronil:
hey chk ur ans
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16m^2+25n^2+40mn+ 25m^2+16n^2+40mn=41m^2+80mn+41n^2
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