Question

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Answer 1

Answer:

4. The total length of both ropes = (2x+3) + (3x-7)

                                                      = 5x - 4

5. Let the number be n

2x² + xy + 2y² + n = 3x² + 5xy

n = 3x² + 5xy - (2x² + xy + 2y²)

n = 3x² + 5xy - 2x² - xy - 2y²

n = x² + 4xy -2y²

6. Let the number be n

3a² - 4b² + 5ab - n = -a² - b² + 6ab

n = -a² - b² + 6ab - (3a² - 4b² + 5ab )

n = -a² - b² + 6ab - 3a² + 4b² - 5ab

n = -4a² + 3b² + ab

Step-by-step explanation:

Hope it helps :)

Answer 2

Answer:

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