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solong [7]
3 years ago
5

Solve for all possible values of x. square root of the quantity x plus 6 end quantity plus 5 equals 17

Mathematics
1 answer:
Georgia [21]3 years ago
8 0

Answer:

x=138

Step-by-step explanation:

So we have the equation:

\sqrt{x+6}+5=17

First, let's determine the domain restrictions. Recall that the radicand cannot be negative. In other words, it must be greater than or positive than 0. Thus:

x+6\geq 0

Subtract 6 from both sides:

x\geq -6

What this means is that our solutions must be greater than or equal to -6. If not, we ignore them.

So, let's subtract 5 from both sides from the original equation:

\sqrt{x+6}=12

Square both sides:

x+6=144

Subtract 6 from both sides:

x=138

138 is greater than -6, so 138 is a solution and is the only solution.

And we're done!

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