Giovirose Giovirose

01-10-2019
Mathematics

contestada

Factor completely 49x^2-81.

A. (7x+9)^2
B. (7x-9)^2
C. (7x+9)(7x-9)
D. 7x-9

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01-10-2019

Answer:

C.

Step-by-step explanation:

Since both terms are perfect squares, factor using the difference of squares formula to get you the answer

(7x+9)(7x-9)

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