what is the discriminant of -2x to the power of 2 -x-1=0

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what is the discriminant of -2x to the power of 2 -x-1=0

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Thu Nguyệt 3 years 2021-08-30T13:33:58+00:00 1 Answers 4 views 0

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  1. RobertKer
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    2021-08-30T13:35:48+00:00
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    uhhh 67904- 67903-iwbisbeus e

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )