bigpoppariri bigpoppariri
  • 14-08-2017
  • Mathematics
contestada

use the Quadratic formula to solve: x^2 + 10 =-7x

Respuesta :

Banabanana
Banabanana Banabanana
  • 14-08-2017
[tex]x^2 + 10 =-7x\\x^2 +7x+ 10 =0 \\\\ x= \cfrac{-7б \sqrt{7^2-4*1*10} }{2}=x= \cfrac{-7б \sqrt{49-0} }{2}= \cfrac{-7б 3 }{2} \\ \\ x=\cfrac{-7- 3 }{2}=-5\\\\ x=\cfrac{-7+ 3 }{2}=-2[/tex]

Answer: x=-5,  x=-2 
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sydbid123 sydbid123
  • 14-08-2017
the answer are -5 and -2
Answer Link

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