aaronjcerrato
30.06.2019 •
Mathematics
23. solve for x: -5=45a. 225b. 9c. -9 d. 4524. solve for x: x/3=10a. 10b. 3c. 30d. 7
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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