jessicababygirl1 jessicababygirl1
  • 26-05-2020
  • Mathematics
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please help i don’t understand

please help i dont understand class=

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MathPhys
MathPhys MathPhys
  • 26-05-2020

Step-by-step explanation:

f(x) = x³ − 8x² − 12x + 96

Factor by grouping:

f(x) = x² (x − 8) − 12 (x − 8)

f(x) = (x² − 12) (x − 8)

f(x) = (x + √12) (x − √12) (x − 8)

f(x) = (x + 2√3) (x − 2√3) (x − 8)

The roots are ±2√3 and 8.

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