Question 313149
How do you simplify {{{ 8^(2/3) }}}?
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You can think of it as:
{{{ (8^2)^(1/3) }}}
{{{ (64)^(1/3) }}}  (this is really just the cube root of 64
{{{ (4*4*4)^(1/3) }}}  (look for 3-of-a-kind to remove fron under the radical)
{{{ 4 }}}