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2. Polynomials
easy
નીચે આપેલનાં અવયવ પાડો : $64 m^{3}-343 n^{3}$
Option A
Option B
Option C
Option D
Solution
$64 m^{3}-343 n^{3} =(4 m)^{3}-(7 n)^{3} $
$=(4 m-7 m)\left[(4 m)^{2}+(4 m)(7 n)+(7 n)^{2}\right] $
$=(4 m-7 n)\left[16 m^{2}+28 m n+49 n^{2}\right] $
$=(4 m-7 n)\left[16 m^{2}+49 n^{2}+28 m n\right]$
Standard 9
Mathematics