2(-1/2)^4
2•x-7
'369 x 637
$8^{-2/3}$
$8^{2/3}$
graphic of y=x−1
(³+
1001 $\pi$ 5-1010 $\pi$ 2-100 $\pi$ 8
$25^{1/2}$
$2^{-3}$
