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Question
Math
Posted 10 months ago
Simplify.
Multiply and remove all perfect squares from inside the square roots. Assume xx is positive.
3x45x210=
\sqrt{3 x^{4}} \cdot \sqrt{5 x^{2}} \cdot \sqrt{10}=

\square
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Answer from Sia
Posted 10 months ago
Solution by Steps
step 1
Combine the square roots into a single square root by multiplying the expressions under the radicals
step 2
Simplify the expression under the square root: 3x45x210=3510x4x2 \sqrt{3x^4} \cdot \sqrt{5x^2} \cdot \sqrt{10} = \sqrt{3 \cdot 5 \cdot 10 \cdot x^4 \cdot x^2}
step 3
Calculate the product under the square root: 150x6 \sqrt{150 \cdot x^6}
step 4
Factor out the perfect squares from under the square root: 150x6=256x4x2 \sqrt{150 \cdot x^6} = \sqrt{25 \cdot 6 \cdot x^4 \cdot x^2}
step 5
Take the square root of the perfect squares: 25x4x2=5x2x \sqrt{25} \cdot \sqrt{x^4} \cdot \sqrt{x^2} = 5x^2 \cdot x
step 6
Simplify the expression: 5x2x=5x3 5x^2 \cdot x = 5x^3
step 7
Multiply the remaining square root by the simplified expression: 5x36 5x^3 \cdot \sqrt{6}
Answer
5x365x^3 \sqrt{6}
Key Concept
Simplifying Square Roots
Explanation
When simplifying the product of several square roots, combine them into a single square root, factor out perfect squares, and then take the square root of those perfect squares. The remaining square root is multiplied by the simplified expression outside the square root.

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