Question 937581
Evaluate: ((1/sqrt8)^(-2/3))-81^0.75
<pre><font face = "Tohoma" size = 4 color = "indigo"><b>Evaluate: {{{(1/sqrt(8))^(- 2/3) - 81^0.75}}}
{{{highlight(highlight((sqrt(8))^(2/3) - (81)^(3/4)))}}}
{{{(8^(1/2))^(2/3) - (root(4,81))^3}}} 
{{{highlight(highlight(8^((1/2) * (2/3)) - 3^3))}}}
{{{highlight(highlight(8^((1/cross(2)) * (cross(2)/3)) - 3^3))}}}
{{{highlight(highlight(8^(1/3) - 3^3))}}}
{{{root(3, 8) - 3^3}}}_________{{{2 - 27}}}________{{{highlight_green(- 25)}}}
You can do the check!! 
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