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MAUDMARINE

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A = 5a² - (3a² - 4a + 5) + 2a - 8

A = 5a² - 3a² + 4a - 5 + 2a - 8

A = 5a² - 3a² + 4a + 2a - 5 - 8

A = 2a² + 6a - 13

B = 4y * (- 2) + 5y² - 4y + 2y * 3y

B = - 8y + 5y² - 4y + 6y²

B = 5y² + 6y² - 8y - 4y

B = 11y² - 12y.

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