Which of the following is a perfect square trinomial? A. 4x^2 + 20xy - 25y^2 B. 4x^2 - 14xy + 25y^2 C. 4x^2 + 14xy - 25y^2 D. 4x^2 - 20xy + 25y^2

Robin Singh asked Apr 25, 2023

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Which of the following is a perfect square trinomial?

A. 4x^2 + 20xy - 25y^2

B. 4x^2 - 14xy + 25y^2

C. 4x^2 + 14xy - 25y^2

D. 4x^2 - 20xy + 25y^2

Robin Singh asked Apr 25, 2023

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16 votes

Answer:

D.~4x^2-20xy+25y^2

Explanation:

$4x^2-20xy+25y^2\\\\=(2x)^2-2\cdot 2x \cdot 5y+(5y)^2\\\\=(2x-5y)^2$

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