Help me with this math problem

[dooit]

<p>From the big blue book:</p>

<p>sqrt(x^2-t^2)=2t-x
IF x and t are positive numbers, what is the value of x/t?</p>

<p>I'm lost after
sqrt((x+t)(x-t))=2t-x</p>

[optimizerdad]

<p>Wasn't the solution to this posted earlier today?</p>

<p>Square both sides: x^2 - t^2 = 4t^2 - 4tx + x^2
from which 4tx = 5t^2
or x/t = 5/4</p>

[Differentiable]

<p>I was going to respond, but while was preparing visual explanation, you
received a more succinct answer. If you want a further explanation you
can look [url=<a href="http://ameri-cantraders.com/eqn.jpg%5Dhere%5B/url"&gt;http://ameri-cantraders.com/eqn.jpg]here[/url&lt;/a&gt;].&lt;/p>

[dooit]

<p>thank s:)</p>