factorise 4xsquare +9ysquare-zsquare+12xy
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Answer:
(2x + 3y + z)(2x + 3y - z)
Step-by-step explanation:
4x² + 9y² - z² + 12xy
= 4x² +12xy + 9y² - z²
= (2x + 3y)² - z²
= (2x + 3y + z)(2x + 3y - z)
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