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IgorLugansk [536]
3 years ago
10

What is the following product?

Mathematics
2 answers:
VMariaS [17]3 years ago
6 0

For this case we must find the product of the following expression:

\sqrt {12} * \sqrt {18}

We combine using the product rule for radicals:

\sqrt [n] {a} * \sqrt [n] {b} = \sqrt [n] {ab}

So, we have:

\sqrt {12 * 18} =\\\sqrt {216} =

We rewrite the 216 as6 * 6 * 6 = 6 ^ 3 = 6 ^ 2 * 6

\sqrt {6 ^ 2 * 6} =

By definition of properties of powers and roots we have:

\sqrt [n] {a ^ n} = a ^ {\frac {n} {n}} = a

Then, the expression is:

6 \sqrt {6}

Answer:

Option D

Sidana [21]3 years ago
4 0

ANSWER

6 \sqrt{6}

EXPLANATION

The given product is

\sqrt{12}  \times  \sqrt{18}

We rewrite to get;

\sqrt{4 \times 3}  \times  \sqrt{9 \times 2}

We split the radical sign to get:

\sqrt{4 }  \times   \sqrt{3} \times  \sqrt{9}  \times  \sqrt{2}

The perfect squares simplifies to:

2\sqrt{3}  \times 3 \sqrt{ 2}

This gives us :

2 \times 3 \sqrt{3 \times 2}

This simplifies to;

6 \sqrt{6}

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