2x +7y multiplied by 2x+7y
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Answered by
1
(2x+7y)²
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Answered by
2
Answer:
4x² + 49y² + 28xy
Step-by-step explanation:
(2x +7y) × (2x +7y)
(2x +7y)²
{Using identity : (a + b)² = a² + b² + 2ab}
(2x)² + (7y)² + 2(2x)(7y)
4x² + 49y² + 28xy
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