(Help) Finding "x" in an equation: (x-1)3/4 = 64.

Koos12

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Feb 16, 2018
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I'm grade 9 doing very basic algebra, and I came across this question which I just can't figure out.
It's asking me to find the value of "x" in the equation (x-1)3/4 = 64. They haven't explained how to do this in the book and i'm home schooled so no teacher to ask. That x-1 throws me off.
Can anyone please explain how you get the answer and what steps you go through to find x? Thank you all. Hope this makes sense.
 

tkhunny

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Apr 12, 2005
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What would you do if it were just 'x', rather than 'x-1'? Please demonstrate.

Also, please clarify. Is that \(\displaystyle (x-1)^{3/4}\;or\;(x-1)\cdot\dfrac{3}{4}\) or something else?
 
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