Question

class 9 chapter -2 polynomials
solution please fast it's argent and write step by step....​

Answer 1

Step-by-step explanation:

ii) 64x^3 −125y^3

Above terms can be written as,

(4x)^3−(5y)^3

We know that, a^3 −b^3=(a−b)(a ^2+ab+b ^2)

Where, a=4x,b=5y

Then,(4x) ^3−(5y) ^3

=(4x−5y)((4x) ^2 +(4x×5y)+5y ^2)

=(4x−5y)(16x^2 +20xy+25y