david66 david66
  • 18-08-2017
  • Mathematics
contestada

number 6, part B. i don't understand

number 6 part B i dont understand class=

Respuesta :

kphung76127
kphung76127 kphung76127
  • 18-08-2017
x^2+2x= -8

x^2+2x+1= -8+1
(x+1)^2= -8+1
(x+1)^2=-7

x+1= √-7

The answer is No Solution because the root of a negative number is not a real number.
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