Respuesta :

znk

Answer:

x = 12  

Step-by-step explanation:

√(x + 4) - 3 = 1     Add 3 to each side

   √(x + 4) = 4      Square each side

       x + 4 = 16     Subtract 4 from each side

             x = 12

=====

Check:

√(12 + 4) – 3 = 1

       √16 – 3 = 1

           4 – 3 = 1

                  1 = 1


Answer:


Step-by-step explanation:

We have equation

[tex]\sqrt{x+4} -3=1[/tex]

to solve for x we first add 3 to both side

[tex]\sqrt{x+4}-3+3=1+3\\\sqrt{x+4} =4[/tex]

now we need to remove square root from left side, so we square both sides

[tex]x+4=4^{2}[/tex]

[tex]x+4=16[/tex]

now we subtract 4 from both sides

[tex]x+4-4=16-4\\x=12[/tex]

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