deatheater0918
deatheater0918 deatheater0918
  • 14-09-2016
  • Mathematics
contestada

Use the quadratic formula to solve 4x2 – 8x – 60 = 0.

Respuesta :

juliaxnichole
juliaxnichole juliaxnichole
  • 14-09-2016
i found 2 solutions 
x = 5
x = -3
Answer Link
nicholas2021265
nicholas2021265 nicholas2021265
  • 14-09-2016
[tex]\frac{-b+or-\sqrt{b^2-4ac}}{2a}=\frac{8+or-\sqrt{(-8)^2-4*4*-60}}{2*4}=\frac{8+or-32}{8}=\frac{2+or-8}{2}[/tex]
5 and -3
Answer Link

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