Mathematics: Ineed to solve this problem √x+4-1 =8 it s a radical equation

Ineed to solve this problem √x+4-1 =8 it s a radical

Ответ:

PrincesaChrissy6366

16.01.2022

x = 77

Step-by-step explanation:

$\sqrt{x+4}-1=8\\\\\text{Domain:}\ x+4\geq0\to x\geq-4\\\\\sqrt{x+4}-1=8\qquad\text{add 1 to both sides}\\\\\sqrt{x+4}=9\qquad\text{square both sides}\\\\\left(\sqrt{x+4}\right)^2=9^2\\\\x+4=81\qquad\text{subtract 4 from both sides}\\\\x=77\in D$

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Ответ:

july00

14.01.2023

Mathematics

your answer is going to be .b 18 units

Step-by-step explanation: idk

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Ineed to solve this problem √x+4-1 =8 it's a radical equation

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