Use the value of the discriminant to determine the number and type of roots for the equation. x^2 = 4x - 4

d=0; discriminant equals zero

this means there is one real root for the equation

Step-by-step explanation:

the discriminant is d=b^2-4ac

so we can write our equation in the format to subsitute

ax^2+bx+c=0

x^2 = 4x - 4

so...

1x^2 - 4x + 4 = 0

so

a= 1

b=-4

c=4

now subsitute

d= b^2-4ac

d= -4^2-4(1)(4)

d=16-16

d=0

The discrimant equals zero.

when the discriminant equal zero we know that there is one real root for the equation.

hope this helped!

1. 3.4/4

2. 0.8/7

3. 0.5 x 3

4. 0.9 x 6

5. 10.8

6. 2.35

7. 0.567

8. 9.35

9. 0.02

10. 0.06

11. 0.16

12. 0.42

13. 0.63

14. 5.6

15. 8.1

16. 9.9

17. 0.28

18. 0.48

19. 0.27

20. 0.49

21. 0.45

22. 0.72

23. 0.9

24. 0.88

25. 0.75

26. 0.16

27. 0.328

28. 0.495

29. 0.72

30. 1.068