How would the expression x^3+8 be written using the sum of cubes

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asked Aug 25, 2019 90.1k views

1 Answer

Karim Varela · Answer 1 · 2019-08-29T21:37:55+0000

Hey there!:

x³ + 8 :

Apply sum of cubes rule :

x³ + y³ = ( x + y )( x² - 2x + 4 ) =

x³ + 8 = ( x + 2 )( x² - 2x + 2² ) =

refine :

x³ + 8 = ( x + 2 )( x² - 2x + 4 )

hope this helps!

How would the expression x^3+8 be written using the sum of cubes

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