Subtract.(0.9x4 - 0.4x3 + 0.2) - (2.3x4 + 2.7x - 2.9)
A. -1.4x4 - 0.4x3 - 2.7x - 2.7
B. -1.4x4 - 0.2x3 - 2.7
C. -1.4x4 - 0.4x3 + 2.7x + 3.1
D. -1.4x4 - 0.4x3 - 2.7x + 3.1
Answer: D
Mathematics
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