2. Polynomials
easy

વિસ્તરણ કરો. $:(3 x+7 y)(3 x-7 y)$

Option A
Option B
Option C
Option D

Solution

$(3 x+7 y)(3 x-7 y)=(3 x)^{2}-(7 y)^{2}$

$=9 x^{2}-49 y^{2}$

Standard 9
Mathematics

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