2 sentences for 方 (fāng — power)

1. 三的二次方等于九。

   sān de èr cì fāng děng​yú jiǔ.

   Three squared equals nine.

   Source: Dong Chinese Dictionary

2. 二的三次方也可以称为二的三次幂。

   èr de sān cì fāng yě kě​yǐ chēng​wéi èr de sān cì mì.

   Two to the power of three can also be called 'the third power of two'.

   Source: Dong Chinese Dictionary