Product of real roots of the equation ${t^2}{x^2} + |x| + \,9 = 0$
Is always positive
Is always negative
Does not exist
None of these
The product of all real roots of the equation ${x^2} - |x| - \,6 = 0$ is
The number of real solutions of the equation $|x{|^2}$-$3|x| + 2 = 0$ are
If $x, y$ are real numbers such that $3^{(x / y)+1}-3^{(x / y)-1}=24$ then the value of $(x+y) /(x-y)$ is
The product of the roots of the equation $9 x^{2}-18|x|+5=0,$ is