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Identify which technique would be best applied to factor the polynomial below. x^2-25 A. difference of two squares B. grouping C. greatest common factor D. perfect square trinomial

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Since x² and 25 are the squares of x and 5 respectively, the best technique is A. difference of two squares.

[tex]x^2-25=x^2-5^2=(x-5)(x+5)[/tex]

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