Answer:
(2x + 3) (2x - 3)
Step-by-step explanation:
4x² - 9
With this we use difference of two squares, that is when we have
a² - b² it gives (a + b) (a - b)
Therefore
4x² - 9
= (2x)² - 3²
= (2x + 3) (2x - 3)
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