
Omat N.
asked 09/30/18i need help answer
Determine the nature of the solutions to the equation: x2 + 2x - 4 = 0
A. One repeated real solution
B. Two irrational solutions
C. Two complex solutions
D. Two rational solutions
A. One repeated real solution
B. Two irrational solutions
C. Two complex solutions
D. Two rational solutions
More
1 Expert Answer

Andy C. answered 09/30/18
Tutor
4.9
(27)
Math/Physics Tutor
As Mark has stated, the value of the DISCRIMMINANT b^2 - 4ac , where a=1, b=2, and c=-4 is
2^2 - 4(1)(-4) = 4 - (-16) = 4+16 = 20
Since it is not a perfect square but positive, the solutions shall be irrational
option B is the best choice
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Mark M.
09/30/18