SOLUTION: i need help telling if the equation has one, two, or no real solution {{{x^2-3x+4=0}}}
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Question 776366
:
i need help telling if the equation has one, two, or no real solution
Answer by
rothauserc(4718)
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You can
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x^2 -3x +4 = 0
use the determinant from the quadratic formula
b^2 -4ac = (-3)^2 - 4*1*4 = 9 -16 = -7
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a negative determinant implies no real solutions