Mathematics, 19.05.2020 13:14 baby092000

Which of the following equations demonstrate that the set of polynomials is
not closed under the certain operations?
A. Multiplication: 3x4 + x°)(-2x4 + x) = -6x8 + x?
+ to
B. Division: (x2 + 2x) = (x + 1) = x+
х
x +1
C. Multiplication: (x2 + 2x)(x + 1) = x+3x2+2x
D. Addition: 3x4 + x°) + (-2x+ + x) = x4 + 2x3

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