vshaughnp5skqm vshaughnp5skqm
  • 21-05-2019
  • Mathematics
contestada

What is the solution of Sqrt -4x = 100?

x = –2500
x = –50
x = –2.5
no solution

Respuesta :

emu83 emu83
  • 21-05-2019

X = -2500

This is because:

  1. -2500 * -4 = 10,000
  2. Sqrt of 10,000 is 100
Answer Link
carlosego
carlosego carlosego
  • 22-05-2019

For this case we must find the value of the variable "x" of the following expression:

[tex]\sqrt {-4x} = 100[/tex]

Now, we square both sides of the equation:

[tex]-4x = 100 ^ 2\\-4x = 10000[/tex]

We divide between -4 on both sides of the equation:

[tex]x = \frac {10000} {- 4}\\x = -2500[/tex]

ANswer:

[tex]x = -2500[/tex]

Option A

Answer Link

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