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kompoz [17]
3 years ago
13

Which expression is equivalent to

rmula1" title="\sqrt128x^{8} y^{3} z^{9}" alt="\sqrt128x^{8} y^{3} z^{9}" align="absmiddle" class="latex-formula">? Assume y\geq 0 and z\geq 0.
A - 2x^{2} z^{2} \sqrt8y^{3} z

B - 4x^{2} yz^{3}\sqrt 2x^{2}

C - 8x^{4} yz^{4} \sqrt2yz

D - 64x^{4}yz^{4} \sqrt2yz
Mathematics
2 answers:
Archy [21]3 years ago
8 0

Answer:

C on edge2020.

Step-by-step explanation:

Trust me on this one.

:D

Elis [28]3 years ago
4 0

Answer:

(C)8x^4z^4\sqrt{2yz}

Step-by-step explanation:

We want to determine an expression equivalent to: \sqrt{128x^8y^3z^9}

\sqrt{ab} =\sqrt{a}*\sqrt{b}

Therefore:

\sqrt{128x^8y^3z^9}=\sqrt{128}*\sqrt{x^8}*\sqrt{y^3}*\sqrt{z^9}

=\sqrt{64*2}*\sqrt{x^{4*2}}*\sqrt{y^{2+1}}*\sqrt{z^{8+1}}\\=8\sqrt{2}*\sqrt{x^{4*2}}*\sqrt{y^2*y}*\sqrt{z^{8}*z}}

=8\sqrt{2}*x^4*y \sqrt{y}*z^4\sqrt{z}\\=8*x^4*z^4*\sqrt{2}*\sqrt{y}*\sqrt{z}\\=8x^4z^4\sqrt{2yz}

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