Discover Questions

Is people preparing for planet x right now? What are some things about bears? Why does x^7+y^7 factor to (x+y) (x^6-x^5y+x^4y^2-x^3y^3+x^2y^4-xy^5+y^6)? Simplified and completely factored form of of 12x + 4x + 25y + 15y? Suppose an X ray has a wavelength of 13 pm. what is the energy of this radiation (in joules)?