Question 15: Performing the calculation \((2 x+y)^{2}-xy\) we get

14/01/2022 // by admin// Leave a Comment

Question 15: Performing the calculation \((2 x+y)^{2}-xy\) we get

A. \(x^{2}-3 x y+y^{2} \)

B. \(4 x^{2}+3 x y+y^{2} +1\)

C. \(4 x^{2}+3 x y+y^{2} \)

D. \(- x^{2}+x y+y^{2} \)

\((2 x+y)^{2}-xy=4 x^{2}+4 x y+y^{2}-xy=4 x^{2}+3 x y+y^{2} \)

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