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Mathematics, 11.04.2021 06:10 silverns

Which operation is NOT closed for polynomials? A)
(x2 – 3x + 5) + (5x? – 8x + 4)
B)
(4x3 - 2x + 6) – (x2 + 3x + 2)
(x2 – 3x + 5)(x? - 4x + 4)
D)
(x2 + 3x + 5)
(X® + 4x + 2)

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Which operation is NOT closed for polynomials? A)
(x2 – 3x + 5) + (5x? – 8x + 4)
B)
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