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= 4p³ + 2p² - 3p
(8a + 4) - (2a - 5)
= 8a + 4 - 2a + 5
= 6a + 9
(a² + 5a) - (-3a² - 9a)
= a² + 5a + 3a² + 9a
= 4a² + 14a
(x² + 3x + 2) - (4x² + 2x - 7)
= x² + 3x + 2 - 4x² - 2x + 7
= -3x² + x + 9
(8x² + 4xy + y²) - (5x² - xy - 2y²)
= 8x² + 4xy + y² - 5x² + xy + 2y²
= 3x² + 5xy + 3y²
semoga membantu ya.. :)