Question

URGENT i need quick math help rn please:)

Answer 1

Multiplicity 2 means you're using that same root twice.  So we will FOIL out (x+1)(x+1)(x-3).  Doing that multiplying gives us  $x^3+2x^2+x-3x^2-6x-3$.  Combining like terms gives us the third degree polynomial we are looking for:  $x^3-x^2-5x-3$