So you are complaining that nobody did your homework for you? Perhaps you are at the wrong board! Have you solved that equation yet? That would be the obvious first step.
k is uniformly chosen from the interval (-5,5) . Let p be the probability that the quartic f(x)=kx^4+(k^2+1)x^2+k has 4 distinct real roots such that one of the roots is less than -4 and the other three are greater than -1. Find the value of 1000p.
I had posted this thread 3 days ago too nobody took the initiative to COMPLETELY solve it. I need help as i m no pro in probability.