danielanderson12
04.07.2021 •
Mathematics
Solve this: A woman was 39years old when she gave birth to a pair of twins.12 years ago,she was twice as old as the sum of the ages of the twins put together.Find their present ages.
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Ответ:
woman =39years
twins 0year each since 12 years ago they were not yet born
Ответ:
Use F.O.I.L
X^7+9x^4-9x^3-81