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2 votes
Look at picture and plzz help me

Look at picture and plzz help me-example-1
User See
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2 Answers

5 votes

Answer: A

Step-by-step explanation:

  1. factor out the greatest perfect foot factor
  2. the root of a product is equal to the product of the roots of eachother
  3. reduce the index of the radical and exponet with 5

Look at picture and plzz help me-example-1
User Onessa
by
7.6k points
4 votes

For this case we must simplify the following expression:


\sqrt [5] {224x ^ {11} * y ^ 8}

We follow the steps below:

We rewrite 224 as the product of: 32 * 7


\sqrt [5] {32 * 7 * x ^ {11} * y ^ 8} =

We rewrite
32\ as\ 2 ^ 5, x^(11)\ as\ x * x^(10):


\sqrt [5] {2 ^ 5 * 7 * x ^ {10} * x * y ^ 8} =

We rewrite
x^(10) as
(x ^ 2) ^ 5, we also rewrite
y ^ 8 as
y ^ 5 * y ^ 3:


\sqrt [5] {2 ^ 5 * 7 * (x ^ 2) ^ 5 * x * y ^ 5 * y ^ 3} =

We reorder:


\sqrt [5] {2 ^ 5 * (x ^ 2) ^ 5 * y ^ 5 * 7 * x * y ^ 3} =\\\sqrt [5] {(2 * x ^ 2 * y) ^ 5 * (7 * x * y ^ 3)} =

We take the terms of the radical considering that:
\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}


2 x ^ 2y \sqrt [5] {7 x y ^ 3}

Answer:

Option A

User Rosanna
by
8.5k points

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