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Natali [406]
3 years ago
5

Solve 2x^2-4x-18=0 by completing the square. round the solutions to the nearest hundredth

Mathematics
1 answer:
Lorico [155]3 years ago
4 0

Answer:

1-√10

1+√10

Step-by-step explanation:

  • 2x^2-4x-18=0
  • x^2-2x-9=0
  • x^2-2x+1-10=0
  • (x-1)^2-10=0
  • (x-1+√10)(x-1-√10)=0
  • x=1-√10
  • x=1+√10
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