deatheater0918 deatheater0918

14-09-2016
Mathematics

contestada

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

Respuesta :

juliaxnichole juliaxnichole

14-09-2016

i found 2 solutions
x = 5
x = -3

Answer Link

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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