apikunwar20 apikunwar20

04-10-2020
Business

contestada

Somebody pls help me to this step by step. Only step by step one will get the brainliest.
10. Simplify:
a. (2a+3b)^3-(2a-3b)^3

Respuesta :

paulettepaguay paulettepaguay

04-10-2020

Since both terms are perfect cubes, factor using the difference of cubes formula,

a^3 − b^3 = ( a−b ) ( a^2 + ab + b^2 ) where a 2a + 3b

and b = 2a - 3b

18b ( 4a^2 + 3b^2)

Simplify:

54b^3+72a^2b

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