The inverse variation equation shows the relationship between wavelength in meters, x, and frequency, y. y=3x10^8/c
What are the wavelengths for X-rays with frequency 3 x 10^18?

Answer asap! show all work! find the number of complex roots, the possible number of real roots and the possible rational roots of the polynomial function. then, solve for all roots. x^3 + 2x^2 + 3x + 6 = 0