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Papessa [141]
3 years ago
15

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

eal number solutions the equation has?
The discriminant is equal to −16, which means the equation has no real number solutions.
The discriminant is equal to −16, which means the equation has two real number solutions.
The discriminant is equal to 24, which means the equation has no real number solutions.
The discriminant is equal to 24, which means the equation has two real number solutions.
Mathematics
2 answers:
stiv31 [10]3 years ago
9 0

Answer:

The discriminant is equal to −16, which means the equation has no real number solutions.

Step-by-step explanation:

\text{Given the quadratic equation }-1=5x^2-2x

we have to find the number of real number solutions the equation has.

The equation is

5x^2-2x+1=0

\text{Comparing above equation }ax^2+bx+c=0

a=5, b=-2, c=1

To find number of real solutions we have to find the discriminant

D=b^2-4ac

D=(-2)^2-4(5)(1)

D=4-20=-16

The value of discriminant is -16<0

Hence, the equation has no real roots.

Hence, option 1 is correct

exis [7]3 years ago
7 0

-The equation is actually

5x^2 -2x+1=0;

-The discriminant is b^2 -4ac=4-4•5•1=4-20=-16

-this means that the equation has no real number solutions

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