(2m-5)³ expansion answer
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Answered by
65
using the identity
(a-b)^3= a^3-b^3 -3a^2b+3ab^2
a= 2m
b= 5
(2m-5)^3= (2m)³ - 5³ - 3 x (2m )² x 5 + 3 x 2m x 5²
= 8m³- 125 - 60m²+ 150m
i hope this helps u :)
Answered by
26
I think it may be the answer if it is wrong don't scold me
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