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Which expression represents adding 4xy to the square of the difference of x and y?

Answer and explanation

Correct answer: (x − y)² + 4xy

The governing concept is translating a compound verbal statement into algebra while respecting grouping. “The difference of x and y” is x − y. Because the statement asks for “the square of the difference,” the entire difference must be enclosed in parentheses before squaring: (x − y)². Adding 4xy to this quantity gives (x − y)² + 4xy, so option D is correct. Option A uses x² − y², which is the difference of two squares and is not the square of a difference. Option B squares only y and therefore does not represent the stated phrase. Option C subtracts the square from 4xy, reversing the requested addition and order. Parentheses are essential here.

Related tags

Algebraic ExpressionsSquare Of A DifferenceVerbal TranslationIntroduction To PolynomialsClass 9 MathematicsMathematicsClass 9 Mcq

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