guadalupe47 guadalupe47

09-10-2020
Mathematics

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I need help because im not sure if im supposed to square it
[tex]2 \sqrt{x} = x - 3[/tex]

Respuesta :

09-10-2020

Step-by-step explanation:

[tex]2 \sqrt{x} = \: x - 3 [/tex]

[tex] ({ 2 \sqrt{x} )}^{2} = \: {x}^{2} - {3}^{2} [/tex]

[tex]4x = {x}^{2} - 9[/tex]

[tex] {x}^{2} - 4x - 9 = 0[/tex]

[tex]x = 5.60 \: and \: x = - 1.60[/tex]

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