3 years ago

Factor completely 49x2 − 81. a. (7x 9)2 b. (7x − 9)2 c. (7x 9)(7x − 9) d. 7x − 9

Mathematics

2 answers:

xeze [42]3 years ago

6 0

Answer:

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

Step-by-step explanation:

vredina [299]3 years ago

3 0

Use the property
(a -b)(a+ b) = a^2 - b^2

49x^2 - 81 = (7x + 9)((7x - 9)

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