55.2k views
4 votes
Factor completely 49x2 − 9.

(7x + 3)(7x − 3)
(7x + 3)(x − 3)
(7x − 3)(7x − 3)
(7x − 3)(x − 3)

2 Answers

3 votes

Answer:

A is correct

Explanation:

User Rajbir
by
8.1k points
7 votes

Answer:

number 1

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

User Vivek Rajagopalan
by
7.6k points
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