Question

EXPAND THIS = (7 + M)³
FASSSTTTTT.......

Answer 1

(a+b) ^3=a^3+b^3+3a^2b+3ab^2
(7+M)^3
=343+M^3+147M+21M^2
Hope it helped you

Answer 2

$\huge{heya\:mate}$

$\huge{(7+m)^3}$

$\huge{343+m^3+3(7)(m)(7+m)}$

$\huge{343+m^3+21m(7+m)}$


$\huge{343+m^3+147m+21m^2}$