freckledspots freckledspots
  • 19-09-2019
  • Mathematics
contestada

Evaluate [tex]b^2-4ac[/tex] for [tex]a=-1,b=-4,c=5[/tex].
Is the value that was returned to you positive,negative, or zero?

Respuesta :

Wolfyy
Wolfyy Wolfyy
  • 19-09-2019

Hey!

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Solution:

[tex]= b^2 - 4ac\\= (-4)^2 - 4(-1)(5)\\= 16 - 4(-5)\\= 16 - (-20)\\= 16 + 20\\= 36[/tex]

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Answer:

36

The value that was returned to you was positive!

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Hope This Helped! Good Luck!

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