(3) (7+m) ^3
please solve this
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Answer:
1029+3m^3.
Step-by-step explanation:
(3) (7+m)^3
=(3) (7.7.7+m.m.m)
=(3) (343+m^3)
=343x3+m^3x3
=1029+3m^3.(ans)
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