am trying to solve for x in this equation

squaring both sides

i end up with can i get some helf solving for x. that if what i did was correct.

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- Apr 14th 2010, 12:06 PMsigma1modulus equation
am trying to solve for x in this equation

squaring both sides

i end up with can i get some helf solving for x. that if what i did was correct. - Apr 14th 2010, 12:23 PMrunning-gag
Hi

I suggest you to separate the 2 cases and

In the first case you get

Find the solutions and take the ones that are

Do the same for the second case and finally join the 2 sets of solutions - Apr 14th 2010, 12:28 PMArchie Meade
Hi sigma1,

you need c-ordination here,

you have made errors with polarity above.

If x is positive, this is

this is negative if one factor is positive and the other negative.

If -3<x<4 the left factor is negative and the right one positive.

But remember, x must be positive here.

If x>4, they are both positive.

If x<-3 they are both negative.

If x is negative, this is

This can be evaluated in the same way as above.