Category: Polynomials

16. What are the possible expressions for the dimensions of the cuboids whose volumes are given below? (i)

15. Give possible expressions for the length and breadth of each of the following rectangles, in which their

14. Without actually calculating the cubes, find the value of each of the following: (i) ((-12)^3+(7)^3+(5)^3) (ii) ((28)^3+(-15)^3+(-13)^3)

13. If (x+y+z=0), show that (x^3+y^3+z^3=3xyz). Polynomials Exercise 2.4 Previous Next Class 9 Polynomials Exercise 2.4 1. Use

12. Verify that (x^3+y^3+z^3-3xyz=)({1over 2}(x+y+z))([(x-y)^2+(y-z)^2+(z-x)^2]) Polynomials Exercise 2.4 Previous Next Class 9 Polynomials Exercise 2.4 1. Use suitable

11. Factorise : (27x^3+y^3+z^3-9xyz) Polynomials Exercise 2.4 Previous Next Class 9 Polynomials Exercise 2.4 1. Use suitable identities

10. Factorise each of the following : (i) (27y^3+125z^3) (ii) (64m^3-343n^3) Polynomials Exercise 2.4 Previous Next Class 9

9. Verify : (i) (x^3+y^3=)((x+y)(x^2-xy+y^2)) (ii) (x^3-y^3=)((x-y)(x^2+xy+y^2))  Polynomials Exercise 2.4 Previous Next Class 9 Polynomials Exercise 2.4 1.

8. Factorise each of the following : (i) (8a^3+b^3+12a^2b+6ab^2) (ii) (8a^3-b^3-12a^2b+6ab^2) (iii) (27-125a^3-135a+225a^2) (iv) (64a^3-27b^3-144a^2b+108ab^2)  (v) (27p^3-{1over 216}-{9over

7. Evaluate the following using suitable identities: (i) ((99)^3) (ii) ((102)^3) (iii) ((998)^3) Polynomials Exercise 2.4 Previous Next