- #1

- 62

- 0

find the value of X when y=0

please help me i don't know how to proceed..!!!!!!

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- Thread starter jinx007
- Start date

- #1

- 62

- 0

find the value of X when y=0

please help me i don't know how to proceed..!!!!!!

- #2

thrill3rnit3

Gold Member

- 716

- 1

0 = 3x - x

x

tell me if you still need help after that

- #3

- 62

- 0

0 = 3x - x^{3}/2

x^{3}/2 = 3x

tell me if you still need help after that

Yes infact its there that i am stuck..!!!!!!

- #4

- 62

- 0

i want to know how to find the value of x0 = 3x - x^{3}/2

x^{3}/2 = 3x

tell me if you still need help after that

- #5

berkeman

Mentor

- 60,352

- 10,658

i want to know how to find the value of x

x

[STRIKE]Hint -- remember that in working with equations, you want to do the SAME thing to both sides of the equation, while working to simplify everything. What operation can you do to both sides of this equation to get rid of an x on both sides....?[/STRIKE]

EDIT -- oops, see better hint later by Mark44

Last edited:

- #6

thrill3rnit3

Gold Member

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- 1

Don't forget the case x=0 though.

- #7

Mark44

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Writing the equation as x0 = 3x - x^{3}/2

x^{3}/2 = 3x

tell me if you still need help after that

- #8

thrill3rnit3

Gold Member

- 716

- 1

They both yield the same answers, except that you lose the solution x=0 if you do the first method. I'm sorry if I forgot to make that clear.

- #9

Mark44

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That's why factoring is a better strategy - you don't lose solutions.

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