Question

Simplificar ( 2a+1)³ - ( 2a+1)=

Answer 1

Ola Mariia

(2a + 1)^3 - (2a + 1) = 8a^3 + 12a^2 + 6a + 1 - 2a - 1 = 

8a^3 + 12a^2 + 4a  = 4a*(2a^2 + 3a + 1)


outra

(a - b)^3 - (b - a)  = 

a^3 - 3a^2b + 3ab^2 - b^3 - b + a = 

a^3 - 3a^2b + 3ab^2 - b^3 + a  - b

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