Question

(i) 27y + 1252 (ii) 64m? - 343n
(Hint: See Question 9.1
Jl. Factorise: 27x' + y + 2? - 9xyz
13 Verify that x' +y +z -3xyz = 5x+y+z)[(x - y) + (y-7)+(2 - x*]
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:
(1) (-12)+(7) + (5)
(ii) (28) + (-15)+(-13)
18. Give possible expressions for the length and breadth of each of the following
rectangles, in which their areas are given:
Area : 25a - 35a +12
Area : 35y + 13y - 12​

Answer 1

Answer:

I hope i t us help full

Step-by-step explanation:

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