Impande yesikwele nempande ka-x

Inkinobho yempande yesikwele iza ngaphambi kwenombolo. Cindezela , uthayiphe 49, bese ucindezela . $\displaystyle \sqrt[4]{81}$, $\displaystyle 4$ uza kuqala: thayipha 4, cindezela , landela , umbhalo owolintshi ophezu kwe-$\displaystyle y^{x}$, bese uthayipha 81. Cindezela : $\displaystyle 7-3$ 4..

▶ Buka lesi sinyathelo kwi-vidiyo (27:43)