The graphs of \(y=x^4\) and \(y=7x^2-10\) intersect at four points with \(x\)-coordinates \(\pm \sqrt{m}\) and \(\pm \sqrt{n}\), where \(m > n\). What is \(m-n\) ?
Yes. I'm afraid I gave the positive roots of the equation the labels m and n, but, had I looked more carefully, I would have noticed that your definition of m and n referred to the values under the square root sign!
