Question

log cu baza 2 din 8+(1/2) la puterea -1-∛125

Answer 1

$log_28+\left(\dfrac12\right)^{-1}-\sqrt[3]{125}=log_22^3+2-\sqrt[3]{5^3}=3+2-3=2$

Am folosit:  $\left(\dfrac ab\right)^{-n}=\left(\dfrac ba\right)^{n}$