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9a^2+2ab+b^2 find the expansion of the following |
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Answer» Answer: 9a²+2ab+b² = (3A+b)²-4ab Step-by-step explanation: 9a²+2ab+b² = (3a)²+2ab+b²
= (3a)²+6ab+b²-4ab = (3a+b)²-4ab 9a²+2ab+b² = (3a+b)²-4ab |
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