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 :

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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