8012847
8012847 8012847
  • 01-07-2020
  • Mathematics
contestada

What are the roots of the quadratic equation below 3x2+15x-5=0

What are the roots of the quadratic equation below 3x215x50 class=

Respuesta :

ZJSG09112007
ZJSG09112007 ZJSG09112007
  • 01-07-2020

Answer:

A

Step-by-step explanation:

[tex]3x^2+15x-5=0\\a = 3\\b = 15\\c = -5\\ x = -b\±\frac{\sqrt{b^{2} -4ac} }{2a} \\x = -(15)\±\frac{\sqrt{15^{2} -4(3)(-5)} }{2(3)} \\x = -15 \±\frac{\sqrt{225+60} }{6} \\x = -15\±\frac{\sqrt{285} }{6} = A[/tex]

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brain2008 brain2008
  • 13-07-2022

Answer: A/ x= -15+/- root of 285/6

Step-by-step explanation: Top person is right

Answer Link

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