Question

If a-b=1 then I a3-b3-3ab

Answer 1

Answer:

-1-3a+3a^2

Step-by-step explanation:

a-b=1 then

b=1+a

ATQ,

a^3-b^3-3ab

a^3-(1+a)^3-3[a*(1+a)]

a^3-(1+a^3)-3[a+a^2]

a^3-1-a^3-3a-3a^2

-1-3a+3a^2

I think this is the answer

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