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Mashutka [201]
3 years ago
7

Factorise the equation 9x^2 - 4

Mathematics
1 answer:
Wittaler [7]3 years ago
5 0

Answer:

Step-by-step explanation:

a² - b² = (a +b)(a - b)

9x² - 4 = (3x)² - 2²

            = (3x + 2 )(3x - 2)

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