Find the Discriminant of the quadratic equation and list the number and type of roots the parabola has.
2x² - 5x + 11 = 0
Discriminant: b² - 4ac = _________________
Number and Type of Roots: (Pick one choice)
a) 1 real root
b) 2 real roots
c) 2 complex roots
please help with this question?
2017-02-22 1:32 am
回答 (6)
2017-02-22 10:22 pm
✔ 最佳答案
C
2017-02-22 10:30 pm
C
2017-02-22 10:07 pm
C
2017-02-22 4:06 am
(-5)^2 - 4(2)(11) =
25 - 88 = -63 < 0
Hence since it is 'Less than zero' it has no REAL Roots.
25 - 88 = -63 < 0
Hence since it is 'Less than zero' it has no REAL Roots.
2017-02-22 1:39 am
discriminant = (-5)² - 4·2·11 < 0
2017-02-22 1:37 am
2x² - 5x + 11 = 0
Discriminant:
b² - 4ac = (-5)^2 - 4(2)(11)
= 25 - 88
= - 63
c) 2 complex roots
Discriminant:
b² - 4ac = (-5)^2 - 4(2)(11)
= 25 - 88
= - 63
c) 2 complex roots
收錄日期: 2021-04-24 00:13:26
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