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Long Questions :
9. (a) What should be added to 2x + 3x + 4 to get 3x + 2x - 5?
(b) What should be added to 3x'- 7x - x* + 8 to get 4x + 2x² - 2x - 5?
(c) What should be added to y + y + 2y? - 10 to get yº - 2y + y + 2y? - 4?
10. (a) What should be subtracted from 2x + x - 10 to get 2x² - 7x + 22 ?
(b) What should be subtracted from 2x + 11x² + 22 to get x' - 19x + 2x - 2?
(c) What should be subtracted from y' - 3y + 3y + 6 to get y - 4y + 5y + y +5?
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what a big question please wait for a hour
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