IGNORE the RUDDISH that woman is "feeding" you. You don't need to Complete the Square unless of course, you're required

to or want to! That woman has a LOT to learn, but she never will because she's hard-headed and doesn't believe she should

change, and learn to do mathematics the right way.



With x being time, the worker works most efficiently when he/she puts in the number of hours that produces the maximum number

of units. Those maximum units occur when time, or 

From equation , we then get: 

Now, with maximum units produced when x = 2 hours, we get maximum units of 

AS [x, f(x)], or (x, y) is (2, 58), time when he/she works most efficiently is: 8:00 a.m. + 2 hours  = 10:00 a.m.

At 10:00 a.m., he/she will have produced maximum units of 58. 

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