## Makayla43 3 years ago Use the discriminant to determine the nature of the roots of 2x2 = 0.

1. Makayla43

2x^2=0

2. Callisto

Similar question. Use the same method as this: http://openstudy.com/study#/updates/4fea7cdee4b0bbec5cfa7854

3. timo86m

ok i'll give a hint but wont intervene and give it flat out

4. timo86m

b and c are zero

5. Callisto

@Makayla43 Time for you to try. What is the coefficient of x^2?

6. timo86m

b^2 - 4ac|dw:1340769023413:dw|

7. Callisto

8. farmdawgnation

I'm inclined to agree.

9. Makayla43

Omg. Forget this. I don't understand it and none of ya'll are helping. Bye.

10. Makayla43

It's due tomorrow so I'm screwed.

11. Callisto

You should tell us what you don't understand so that we can help.

12. Makayla43

Everything.

13. freckles

Can you evaluate what timo gave you?

14. Makayla43

B^2-4ab. No.

15. Callisto

Okay, let's start from the beginning. You may take coefficient of a term as the number before the term. For example coefficient of x in the term 8x is 8. Now, in your question, the term is 2x^2. Can you identify the coefficient of x^2?

16. Makayla43

No...

17. Callisto

By the way, it's b^2 - 4ac, not b^2 - 4ab

18. Callisto

Do you understand the example?

19. Makayla43

I typed it wrong.

20. Makayla43

No I do not.

21. Callisto

Which part you don't understand?

22. freckles

The coefficient is the constant multiple

23. freckles

constants are numbers that don't change

24. Makayla43

Everything.

25. Callisto

Including?

26. freckles

8x 8 is a constant x is a variable and actually 8 here is a constant multiple and is therefore the coefficient of x

27. freckles

8 here is called a constant multiple because it is being multiply by that variable

28. freckles

So in 2x^2 What is the coefficient of x^2?

29. Callisto

@Makayla43 are you still here?

30. Makayla43

No.

31. timo86m

:P lol

32. Callisto

I wonder how you can respond when you're not here.... Back to the question, after @freckles 's detailed and clear explanation, which part you still don't understand?

33. nphuongsun93

the i don't wanna study lol