Question

Verify identity

a3
+ b3
= (a + b) (a2
- ab + b2
)
Please answer in LHS = RHS format

give correct answer or I will report your answer​

Answer 1

Answer:

To verify the identity a3 – b3 = (a – b)(a2 + ab + b2) geometrically by using sets of unit cubes. To verify a3 – b3 = (a – b)(a2 + ab + b2). Let a = 3 and b =1. Take 27 cubes and place them to form a stack consisting of a 9 columns, each column consisting 3 cubes [fig.

Answer 2

from the identity (a+b)^3 = a^3 + b^3 + 3ab^2 + 3a^2b

keeping a^3 + b^3 in LHS itself Subtract 3ab^2 + 3a^2b from (a+b)^3...

from tjis u will get the ans as (a+b) (a^2 - ab + b^2)

Hospe this will help you

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