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3 years ago

A student simplified the radical expression at the right. What mistake did the student make? What is the correct answer?

Mathematics

1 answer:

Leni [432]3 years ago

8 0

X has to be inside the radical.
It would be
$\sqrt{ \frac{5x}{5} }$
Simplify the radical by breaking the radicand up into a product of known factors.

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2 years ago

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Answer:

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Step-by-step explanation:

First, apply absolute value rule:

x - 5 ≤ 11 and x - 5 ≥ -11

Then, we add 5 on both sides with both inequalities:

x ≤ 16 and x ≥ -6

Finally, combine the inequalities:

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And we're done ^^

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