hemolelekeakua
28.03.2020 •
Mathematics
How do you write 715.7 in scientific notation
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Ответ:
7.157*10^2
Step-by-step explanation:
Ответ:
(1/x²) - (2/x) - 8 = 0
(1-2x)/ x² = 8
1-2x = 8x²
8x²+2x-1 = 0
(4x - 1) (2x + 1) = 0
x=1/4 , x=-1/2