PhantomPac PhantomPac

24-04-2021
Mathematics

contestada

The sum of a number and 5 is squared. The result is 81.

Thanks if helped. If answered ten points given.

Respuesta :

EPSTER1 EPSTER1

24-04-2021

Answer:

x=4, x=-14

Step-by-step explanation:

With a radical

[tex](x+5)^2=81[/tex]

[tex]\sqrt{(x+5)^2} =\sqrt{81}[/tex]

[tex]x+5=9[/tex]

[tex]x=4[/tex]

[tex]x+5=-9[/tex]

[tex]x=-14[/tex]

Hope it helped :)

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