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Factor completely 49×2 − 9. (7x + 3)(7x − 3) (7x + 3)(x − 3) (7x − 3)(7x − 3) (7x − 3)(x − 3)
Question
Factor completely 49×2 − 9.
(7x + 3)(7x − 3)
(7x + 3)(x − 3)
(7x − 3)(7x − 3)
(7x − 3)(x − 3)
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Mathematics
3 years
2021-07-22T10:10:16+00:00
2021-07-22T10:10:16+00:00 1 Answers
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Answers ( )
Answer:
number 1
Step-by-step explanation:
faster way to it to try to multiple the first to the 2nd one .
(7x+3)(7x-3)
( 7x .7x – 7x.3 ) + ( 3 .7x – 3.3)
49x^2 -21x + 21x – 9
it take you back to the original equation