Question

7. What should be subtracted from x + 2y - 3z to get 3x - 2y + z?
(ii) What should be subtracted from 2x2 - y2 + 4z to get x2 + y2 - 229
(iii) What should be subtracted from 1 + x - x2 to get 2x + x??
8. (1) What should be added to 7a -95 + 13c to get 9a + b - c?
(ii) What should be added to 1+ 2x - 3x to get x*-*-1?
(in) What should be added to m- 2mn + 5n2 to get n? + mn-m??
9. Find the excess of 4p2-2pq + 3qover 2p2 - pq + 4q.
10. By how much does 3x3 - 5x2 + 2x - 3 exceed 2x3 - 3x2 + x + 1?
11. How much is -12 + 7y2 - 3xy less than 2x2 - y2 + xy?
12. How much is x3 - 3x2 + 5x -2 less than 3 - 2x + x2 - 43?
13. If x = 202 + 362 - 5ab, y = 62 - 3a2 + 7ab and 2 = 6a2 - 62 + ab, find :
(i) x + y - z
(ii) x - y + z
14. The perimeter of a triangle is 8 + 13a + 7o and two of its sides are 202 + 3a +2 and 30-40
Find the third side of the triangle.
15. The perimeter of a rectangle is 16x8 - 6x2 + 12x + 4. If one of its sides is 8x2 + 3x, find the oth
side.pls revert proper .it's so urgent........​

Answer 1

Answer:

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