Question

Factor completely 9x2 + 42x + 49.

(3x + 7)(3x − 7)
(9x − 7)(9x − 7)
(3x + 7)(3x + 7)
(9x + 7)(9x + 7)

Answer 1

Answer:

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

Step-by-step explanation:

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