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Mathematics
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OpenStudy (anonymous):
Add: (–6 – n + 2n2) + (8 – 3n – 10n2) A. –2 – 4n – 8n2 B. 2 – 2n – 8n2 C. 2 – 4n – 8n2 D. 2 – 2n – 8n2 Add: (8x + 2y – 3z – 4) + (–4x – 5y + 4z + 6) A. –4x + 3y – z + 2 B. 4x – 3y – z + 2 C. –4x + 3y –z – 2 D. 4x – 3y + z + 2 Subtract and simplify: (4p2q – pq2 + q3) – (3p2q + 2pq2– q3) A. p2q – 3pq2+2q3 B. p2q – 2pq2 C. p2q – 3pq2 D. 2p2q – 3pq2 Subtract and simplify: (y2 – 3y – 5) – (–y2 – 7y + 4) A. 2y2 – 7y + 1 B. –2y2 – 10y – 1 C. 2y2 – 10y + 4 D. 2y2 + 4y – 9
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