SOLUTION: if 21^3 + 23^3= 21428, then 20*21*22 + 22*23*24=

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Question 713294: if 21^3 + 23^3= 21428, then 20*21*22 + 22*23*24=
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
21^3 + 23^3= 21428
9,261+12,167=21,428
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then 20*21*22 + 22*23*24=
9,240+12,144=21,384 ANS.
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9,261-9,240=21 NOTE THIS IS THE MIDDLE INTEGER.
12,167-12,144=23 NOTE THIS IS THE MIDDLE INTEGER.
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21,428-21,384=44 NOTE THIS IS THE SUM OF 21+23=44.