three sides of a triangle are m² -2mn+n², 3mn + 5m² and -7n² + 2mn.Find its perimeter
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Answer:
the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.
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Step-by-step explanation:
- m²+5m²-2mn+3mn+n²-7n²
- 6m²-mn-6n²
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