X 2 0. This is the Dirac equation which can be solved for the wavefunction of a relativistic spin-12 particle. 5 x 1 0 4 x 2 2 x 1 0 x 2 5 x 4 x 2 3 x 8 4 x 2 0 displaystyle frac 5x10 4-x2frac 2x-10-x25x.
Then multiplying them would be 40.
Solving for n we obtain 11 as the answer and deduce that there were 12 people at the party. Some math problems have been challenging us for centuries and while brain-busters like the ones that follow may seem impossible someone is bound to solve em eventually. X 2 4 0 displaystyle x-2 ne 0. X 2 0.