(1/x - 2) = (3/x + 2) - (6x/x² - 4)
f(x) = √5x² + 3x - 1
xª + yª = zª
can anyone explain or run me through any of these :S i been up all night trying to do them
The second one is a function, not a question. What are you asking about it?
The last one looks similar to Fermat's Last Theorem, but other than that you again have asked no question about it.
let a=2, x=1, b=1, then the left hand side is:
so let z=sqrt(2) which gives a solution.
But that is unlikely to be the question you were asked.
You won't get much help with questions expressed like these, as they are
there is more work in turning then into questions that in solving them. Not
to mention we are wasting our time, as our interpretations are unlikely
to be what you were actually asked.
In future try to give the question exactly as asked (which includes all
those inessential words like: show, find, solve, simplify, .. they do mean
Also don't make multiple posts of the same questions, and don't delete
a question once its been asked, you are confusing the thread structure,
and wasting the helpers time.
point of intersection of an arbitary curve y=f(x), and the parabola y=√5x² + 3x - 1
which cannot be done without knowing something about f(x).
What your question probably asks is something like: solve f(x)=0, where
f(x) = √5x² + 3x - 1.
For what it's worth:
√5x² + 3x - 1=0.
This is a quadratic in x so we use the quadratic formula:
x = [-3 +/- sqrt(9 + 4√5)]/(2√5) ~= 0.305626 and -1.647267