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1.37²
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They just calculated the square, as you can see by looking the units.
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It’s 1.37 * 1.37
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This is an example equation from my OU degree - I am trying to work out the individual steps to get to the answer at the bottom so I can understand the process as math is a weak point of mine.

When simplifying the above equation I do not understand where the figure 1.8769 comes from when moving from line 2 to 3? Can anyone ELI5?
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Thank you all for the quick responses this finally makes sense!
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1.37^2 = 1.8769
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