Respuesta :

The solution of equation is: x=-7/2

Step-by-step explanation:

Given equation is:

[tex]5-\sqrt{2x+8}=4[/tex]

first of all, we have to simplify the equation

so,

Subtracting 5 from both sides

[tex]5-5-\sqrt{2x+8}=4-5\\-\sqrt{2x+8}=-1[/tex]

Dividing both sides by -1

[tex]\frac{-\sqrt{2x+8}}{-1}=\frac{-1}{-1}\\\sqrt{2x+8}=1\\[/tex]

Taking square on both sides

[tex](\sqrt{2x+8})^2=(1)^2[/tex]

[tex]2x+8=1[/tex]

Subtracting 8 from both sides

[tex]2x+8-8=1-8\\2x=-7[/tex]

dividing both sides by 2

[tex]\frac{2x}{2}=-\frac{7}{2}\\x=\frac{7}{2}[/tex]

the solution of equation is: x=-7/2

Keywords: Equations, Radicals

Learn more about equations at:

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