Question

Guys please Help me with question number (ii) and (iii)
Chapter : Polynomials
Grade : 9

Answer 1

Explanation:

1. (a-b-c) (a2+b2+c2-ab-ac-bc). = (a3-b3-c3).

NOTE : this is an identity 11th identity

2. (98)3

That is 98×98×98= 941192

For example. (1)3

That is 1×1×1= 1

Or (2)3

That is 2×2×2= 8. [ 2×2=4. ]. {4× 2 = 8 )

Thank you