Can i get someone’s help ? !

Answer:
16x^2 - 1 --> (4x-1)(4x+1)
16x^2 - 4 --> 4 (2x-1)(2x+1)
4x^2 - 9 --> (2x-3)(2x+3)
4x^2 - 1 --> (2x - 1) (2x + 1)
Step-by-step explanation:
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