hese! nd the sum and difference for each given algebraic expression. 1) (2h + 3) and (3h – 6) 2) (11p² + 8r) and (7p² + 5) 3) (4x – 6y + 3z) and (3x – 9y + 10z) 4) (7w³ – 3w² + w) and (-7w³ + 2w² – w) 5) (23mn³ – 7m² + 8mn) and (4mn³ + m² - mn)

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