(3a+2d) ²
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Answer:
=9a²+4d²+12ad
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Answer:
Step-by-step explanation:
(3a + 2b)² = (3a)²+ 2 (3a) (2b) + (2b)² = 9a² + 12ab + 4b² ( ∵(a +b)²=a²+2ab+b² )
(Or) (3a +2d)²= (3a)²+2 (3a)(2d)+(2d)² = 9a²+ 12ad + 4d²
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