2. Polynomials
easy

નીચે આપેલા ઘનનું વિસ્તરણ કરો : $(2 x+1)^{3}$

Option A
Option B
Option C
Option D

Solution

નિત્યસમ $(vi)$ : $(x+y)^{3}=x^{3}+y^{3}+3 x y(x+y)$

$(2 x+1)^{3}=(2 x)^{3}+(1)^{3}+3(2 x)(1)[(2 x)+(1)]$

$=8 x ^{3}+1+6 x [2 x +1] $

$=8 x ^{3}+1+12 x ^{2}+6 x $

$=8 x ^{3}+12 x ^{2}+6 x +1$

Standard 9
Mathematics

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