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of paper.
1. From the sum of 5x3 + 1 and 2x - 3x3 - 3x + 1, subtract x4 – 3x – 2.
2. Subtract the sum of 5x2 + 7x - 1 and 3x2 – 5x + 5 from 17x? – 8x + 11.
3. Find the sum of 3(x - 2y) and -5(x + y).
4. From the sum of 3x4 - 2x3 + 4 and x3 – x2 + 5, subtract the sum of x4 – 9 a
5. From the sum of (-99 - 5) and (45 – 10), subtract (s - 8).
6. (2x - 2y + 3z) + (5x – 6y - 12z)
7. (5x - 7y + 9) + (2x + 4y + 3)
8. (4 + 8x - x2) + (2 - 2x + 3x2)
9. (9 + 3x2 – x) + (2x - 3+ 8x2)
10. (x2 + y2 – 22) + (3z2 – 2x2 - 4y) + (4x2 – 5y2 + z2)
11. (85 + 3t + 1) – (7s + 2t + 6)
12. (2c + 9d + 1) – (c + 90 + 3)
13. [(x2 – 2x + 1) – (x2 – 3x)] – [(x3 + 6x) – (1 + x + x2)]
14. -[(x2 + 1) - (x - 1) - (1 - x2) - (1 - x)]
15. x = {x – [x - (x - 1)]]
6. (11x2y - 2xy) + (4x2y - 9xy2) - (8xy - 10xy?)
7. (02 - pq + 2q2) + (2pq - q2) – (-p2 + pq) + (5p? – 4pq - 9q2) - 4pq​


Sagot :

Answer:

3.-2x-11y

Step-by-step explanation:

(3(x - 2y) )+( -5(x + y).)

(3x-6y)+(-5x-5y)

=-2x-11y