srinidubai2019 srinidubai2019

26-02-2021
Mathematics

contestada

factorise the equation 9x^2 - 4

Respuesta :

devishri1977 devishri1977

01-03-2021

Answer:

Step-by-step explanation:

a² - b² = (a +b)(a - b)

9x² - 4 = (3x)² - 2²

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

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