Question

factorise (2a+3b)² - 9b²​

Answer 1

Answer:

(2a+3b)² - 9b²

= 4a²+9b²+12ab-9b²

= 4a²+12ab

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Answer 2

Step-by-step explanation:

$(2a + 3b) {}^{2} - 9b {}^{2} \\ 4a {}^{2} + 9b {}^{2} + 12ab - 9b {}^{2} \\ 4a {}^{2} + 12ab$

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