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Factorise the equation 9x^2 - 4

Factorise the equation 9x^2 - 4
asked 11.7k views
6 votes
Factorise the equation 9x^2 - 4

asked
User Joebeeson
by
7.9k points

1 Answer

11 votes

Answer:

Explanation:

a² - b² = (a +b)(a - b)

9x² - 4 = (3x)² - 2²

= (3x + 2 )(3x - 2)

answered
User Benjamin Tan Wei Hao
by
8.1k points
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