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Tot ace Qucswon.)11. Factorise : 272 + y +2-9xyz12. Verify that x+y+2-3xyz = = (x + y +z) [(x - 1)* + (y + 2) + (2 - )]13. If x+y+z=0, show that x +y +z = 3xyz.14. Without actually calculating the cubes, find the value of each of the following:(-12y + (7) +(5)) (28)+(-15)' +(-13)15. Give possible expressions for the length and breadth of each of the followinrectangles, in which their areas are given:ctly:Area : 25a - 35a +12Area : 35y + 13y - 12 |
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Answer» Answer: 567 Explanation: |
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