queentreci
queentreci queentreci
  • 13-11-2019
  • Mathematics
contestada

Divide. If there is a remainder, express it in the form r x − 3 . ( x 3 − 27 ) ÷ ( x − 3 ) =

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sqdancefan
sqdancefan sqdancefan
  • 13-11-2019

Answer:

  x^2 +3x +9

Step-by-step explanation:

The factoring of the difference of cubes is a standard form you should keep handy:

  a³ -b³ = (a -b)(a² +ab +b²)

Here, you have a=x, b=3, so the division is ...

  [tex]\dfrac{x^3-27}{x-3}=\dfrac{(x-3)(x^2+3x+9)}{x-3}=x^2+3x+9[/tex]

There is no remainder.

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