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BARSIC [14]
3 years ago
5

What is the simplified form of the following expression 7(^3√2x)-3(^3√16x)-3(^3√8x)

Mathematics
2 answers:
enot [183]3 years ago
6 0
7 \sqrt[3]{2x} - 3 \sqrt[3]{16x} - 3 \sqrt[3]{8x}

7 \sqrt[3]{2x} - 3 \sqrt[3]{8 \times 2x} - 3 \sqrt[3]{4 \times 2x}

\sqrt[3]{2x} ( 7  - 3 \sqrt[3]{8} - 3 \sqrt[3]{4})

\sqrt[3]{2x} ( 7  - 6 - 3 \sqrt[3]{4})

\sqrt[3]{2x} ( 1 - 3 \sqrt[3]{4})

\sqrt[3]{2x} - 3 \sqrt[3]{8x}

\sqrt[3]{2x} - 6 \sqrt[3]{x}

svlad2 [7]3 years ago
5 0

Answer:

The simplified form of the expression is \sqrt[3]{2x}-6\sqrt[3]{x}

Step-by-step explanation:

Given : Expression 7\sqrt[3]{2x}-3\sqrt[3]{16x}-3\sqrt[3]{8x}

To Simplified : The expression

Solution :  

Step 1 - Write the expression

7\sqrt[3]{2x}-3\sqrt[3]{16x}-3\sqrt[3]{8x}

Step 2- Simplify the roots and re-write as

16=2^3\times2 and 8=2^3

7\sqrt[3]{2x}-3\times2\sqrt[3]{2x}-3\times2\sqrt[3]{x}

Step 3- Solve the multiplication

7\sqrt[3]{2x}-6\sqrt[3]{2x}-6\sqrt[3]{x}

Step 4- Taking \sqrt[3]{2x} common from first two terms

\sqrt[3]{2x}(7-6)-6\sqrt[3]{x}

\sqrt[3]{2x}-6\sqrt[3]{x}

Therefore, The simplified form of the expression is \sqrt[3]{2x}-6\sqrt[3]{x}

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