Determine which polynomial is a difference of two squares.. . y2 − 25. . y2 + 25. . y2 − 10. . y2 + 10
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ANSWER
No real roots.
The roots are complex or imaginary.
EXPLANATION
The quadratic equation
has discriminant,
If the discriminant is less than zero , then the quadratic equation has no real roots.
The given discriminant is -9.
Since -9 is less than zero, it means the quadratic equation has complex or imaginary roots.