What are the first two steps in solving the radical equation below? Square root of x plus 1 minus 4 equals 8

Mathematics

1 answer:

sveta [45]4 years ago

5 0

Answer:

x=121

Step-by-step explanation:

√x+1-4=8

1) Combine alike terms:

√x-3=8

2) Add 3 to both sides:

√x=11

3) Cancel the square root by squaring both sides:

x=121

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__________________________
[B]: "√12 " ; AND:
__________________________
[D]: "√20" .
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Choice C) "√16" = 4 . Rule out this choice.
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$\bf \qquad \textit{Simple Interest Earned Amount}\\\\
A=P(1+rt)\qquad 
\begin{cases}
A=\textit{accumulated amount}\to &\$1472\\
P=\textit{original amount}\to& \$1080\\
r=rate\\
t=years\to &\frac{1}{12}
\end{cases}
\\\\\\
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