Answer:
Explanation:
The expression (2x + 3y)² - 9 can be fully factorised as follows:
(2x + 3y)² - 9 = (2x + 3y + 3)(2x + 3y - 3)
= (2x + 3y + 3)(2x + 3y - 3)
The expression is now fully factorised.
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