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Mathematics 18 Online
OpenStudy (anonymous):

solve

OpenStudy (anonymous):

|dw:1325191171750:dw|

OpenStudy (anonymous):

help!

OpenStudy (anonymous):

\[\sqrt[3]{x+4}-2=13\]

OpenStudy (anonymous):

You can add 2 to both sides of the equation to get:

OpenStudy (anonymous):

i did that but what do i do with the index number

OpenStudy (anonymous):

\[\sqrt[3]{x+4}=15\]

OpenStudy (anonymous):

[x=15^{3}-4\]

OpenStudy (anonymous):

raise to the 3 power.

OpenStudy (anonymous):

raise what to the 3rd power

OpenStudy (anonymous):

\[x=15^{3}-4\]

OpenStudy (anonymous):

\[\sqrt{x+4}=(x+4)^{1/3}\]

OpenStudy (anonymous):

A.x = 1 B. x = 3 C. x = 21 D. x = 98 these are the answers i have to choose from

OpenStudy (anonymous):

To get rid of the \[\sqrt[3]{x+4}\]

OpenStudy (anonymous):

raise it to the 3rd power.

OpenStudy (anonymous):

I think you know how to do the rest.

OpenStudy (anonymous):

so it would be x^3 +64=15

OpenStudy (anonymous):

where did you get the 64?

OpenStudy (anonymous):

i have no clue what to do im soo confused right now

OpenStudy (anonymous):

like \[(a^{1/3})^3=a^{3/3}=a\]

OpenStudy (anonymous):

I will write it.

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

|dw:1325191949413:dw|

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