(10.) Factorise each of the following:(i) 27y + 125z(ii) 64m-343[Hint: See Question 9.](11. Factorise : 27x + y + z-9xyz12. Verify that x° +y +z 3xyz = 5(x + y + 2) [(x + y)2 + (y + 2) + 2 = 1If x + y + z = 0, show that x + y + z = 3xyz.14. Without actually calculating the cubes, find the value of each of the followin(1) (-12)+(7) +(5)(ii) (28) +(-15)°+(-13)15. Give possible expressions for the length and breadth of each of the forectangles, in which their areas are given:Area : 35y + 13y - 12Area : 250 - 35a + 12

(10.) Factorise each of the following:(i) 27y + 125z(ii) 64m-343[Hint:

1.	(10.) Factorise each of the following:(i) 27y + 125z(ii) 64m-343[Hint: See Question 9.](11. Factorise : 27x + y + z-9xyz12. Verify that x° +y +z 3xyz = 5(x + y + 2) [(x + y)2 + (y + 2) + 2 = 1If x + y + z = 0, show that x + y + z = 3xyz.14. Without actually calculating the cubes, find the value of each of the followin(1) (-12)+(7) +(5)(ii) (28) +(-15)°+(-13)15. Give possible expressions for the length and breadth of each of the forectangles, in which their areas are given:Area : 35y + 13y - 12Area : 250 - 35a + 12
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