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What is the value of the discriminant of the quadratic equation −1 = 5x2 −2x, and what does its value mean about the number of real number solutions the equation has?

Respuesta :

WojtekR
We have:

[tex]-1=5x^2-2x\\\\5x^2-2x+1=0[/tex]

so:

[tex]a=5\qquad b=-2\qquad c=1[/tex]

and discriminant:

[tex]\Delta=b^2-4ac=(-2)^2-4\cdot5\cdot1=4-20=\boxed{-16\ \textless \ 0}[/tex]

Discriminant is negative so there are no real solutions.
ugghschool

Answer:

its A on edge

Step-by-step explanation:

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