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AJSkullcrusher
08.10.2019 •
Mathematics
Which two sectors add up to almost ¼ of the retirement income?
a. savings and stocks
b. ira and gold
c. gold and savings
d. stocks and pension
Solved
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Ответ:
2±√422
Step-by-step explanation:
x²-4x-9=29
x²-4x-9-29=0
x²-4x-38=0
x=(4±√16+1672)/2
x=(4±2√422)/2
x=2±√422