abby5978
22.06.2019 •
Mathematics
What is the solution set of 8x^2 -2x -1 =0
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Ответ:
Step-by-step explanation:
4x^2 - 8x >= 0
Factor left side
4x(x - 2) >=0
Then case I) 4x <=0 and x - 2 <= 0
so x <= 0 and x <= 2
So x <= 0
Ответ:
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