Question

plzzz tell me all  the identities in chapter 2 class 9 maths ( polynomials ).....

plzzzzz

Answer 1

hope this help you.........

Answer 2

(a + b) whole square = a square + b square + 2ab
a - b whole square = a square + b square -2ab
a square - b square = (a + b) (a -b)
a cube + b cube = (a + b) ( a square - Ab + b square)
a cube - b cube =( a - b) (a square + Ab + b square)
a + b whole cube = a cube + b cube + 3 a square b + 3 ab square
these are the important identities of this chapter