Question: 21. Evaluate the discriminant for each equation, then use it to determine the nature of the roots for each quadratic equations. (3 points) a. x^2+4x+5=0

21. Evaluate the discriminant for each equation, then use it to determine the nature of the roots for each quadratic equations. (3 points)

a. x^2+4x+5=0

b.x^2-4x-5=0

c. 4x^2+20x+25=0

23. Solve each equation. (3 points)

a.x^2+4x+5=0

b.x^2-4x-5=0

c. 4^2+20x+25=0

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