Question 83

# Which of the following is correct?

Solution

ExpressionÂ : $$(2x-y)^2$$

=Â $$(2x)^2+(-y)^2+2(2x)(-y)$$

= $$4x^2+y^2-4xy$$

=> $$(2x+y)^2$$

=Â $$(2x)^2+(y)^2+2(2x)(y)$$

= $$4x^2+y^2+4xy$$

=> Ans - (A)

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