The missing parentheses noted by the blogger, when introducing the concept of raising a negative number to a positive integer, was caused by converting the online curriculum to PDFs. This has been corrected. A benefit of open educational resources, such as Eureka Math, is they are easier than traditional instructional resources to improve upon quickly.Putting aside the concerns this raises about editing, proofing and overall quality control, let's take a minute and check the corrected version.
In case the print is too small, here are a couple of crops:
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