Complete the expressions so that the expressions have the same value.

Question 1: 1.62² = 16.2² = ? = 0.008² = 0.08²

Question 2: There are actually two different ways to complete the expressions above with the given numbers so that each expression has the same value. The value of all four expressions could be ? or ?.

a) 0.9, 0.9
b) 1.8, 1.8
c) 0.45, 0.45
d) 3.6, 3.6