If the two angles are complementary, their measures add up to 90°. You have the angles given as \((x + 2)°\) and \((2x - 4)°\).
To write the equation for the two angles being complementary, you can set it up as follows:
\[ (x + 2) + (2x - 4) = 90 \]
If you want to fill in the blanks as you requested:
\[ (x + 2)° + (2x - 4)° = 90° \]
So, the completed equation is:
\((x + 2)° + (2x - 4)° = 90°\)