Question

6. What should be subtracted from 7x® + 5x² - 4x + 11 to get 3x® – 10x’ – 16x – 23 ?
7. What must be added to 14x* – 3x² + 15x – 18 to get 12x + 5x® – 20x² – 45x + 6 ?
8. What should be added to 9x® - 11x + 6 to get 13x + 6x² - 11x – 14 ?
9. Subtract the sum of 43° - 112° + 8x + 20 and 2x” – 5x + 8 from the sum of 3x° + 17x+ + 21x - 40
and 5x² + 12x - 18.
Ex
of
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b
10. Simplify the expression : (9x® - 4x + 15x - 30) – (7x® – 10x + x - 4) + (18x®
- 30x² + 24x - 16)​

Answer 1

Answer:

one min................