JackieMadness
JackieMadness JackieMadness
  • 02-03-2016
  • Mathematics
contestada

Solve the equation. x^2 = 160

A [tex] \frac{+}{} [/tex] 16 [tex]{ \sqrt{10} }
[/tex]

B [tex] \frac{+}{} 4 \sqrt{10} [/tex]


C 14


D -14, 14

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 02-03-2016
square root both sides and don't forget to get the positive and negative roots
x=+/-[tex] \sqrt{160} [/tex]

[tex] \sqrt{160} [/tex]=[tex] \sqrt{16} [/tex] times [tex] \sqrt{10} [/tex]

[tex] \sqrt{16} [/tex]=+/-4
 
answer is
+/-4[tex] \sqrt{10} [/tex]

answer is b




Answer Link
Exvited
Exvited Exvited
  • 02-03-2016
[tex]x^2 = 160 \\ \\ x = \pm \sqrt{160} \\ \\ x = \pm 4 \sqrt{10} \\ \\ [/tex]

The final result is: x = ±4 √10 or B.
Answer Link

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