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pengurangan a dari b = b - a
= (4p² + 2p - 7) - (p² + 3p + 2)
= 4p² + 2p - 7 - p² - 3p - 2
= 4p² - p² + 2p - 3p - 7 - 2
= 3p² - p - 9
semogamembantu♣