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Question
विस्तार करा.
(3x + 4y) (3x + 5y)
Sum
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Solution
(3x + 4y) (3x + 5y)
= (3x)2 + {4y + 5y} (3x) + (4y) × (5y)
= 9x2 + 9y × 3x + 20y2
= 9x2 + 27xy + 20y2
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