k6ridijoding k6ridijoding
  • 07-05-2017
  • Mathematics
contestada

Factor 3x2 – 12x – 36

Can you please show me step by step?

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PsychrolutesMarcidus
PsychrolutesMarcidus PsychrolutesMarcidus
  • 07-05-2017
 3x² – 12x – 36             Factor 3
=3(x
² -4x -12)               Factor into (x-8)(x-4)
=3(x-8)(x-4)                 Solve for x
=0

x-8=0                            Move 8 to the right side
---> x=8
x-4=0                            Move 4 to the right side
---> x=4

The solutions are x=8,4
Answer Link

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