2. Polynomials
easy

વિસ્તરણ કરો

$(2 x-y-5)^{2}$

Option A
Option B
Option C
Option D

Solution

$(2 x-y-5)^{2}$

$=(2 x)^{2}+(-y)^{2}+(-5)^{2}+2(2 x)(-y)$$+2(-y)(-5)+2(-5)(2 x)$

$=4 x^{2}+y^{2}+25-4 x y+10 y-20 x$

Standard 9
Mathematics

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