Question

(x^3-2x^2-15x+36):(x+4)

Answer 1

\(=\left(x^3+4x^2-6x^2-24x+9x+36\right):\left(x+4\right)\\ =\left[x^2\left(x+4\right)-6x\left(x+4\right)+9\left(x+4\right)\right]:\left(x+4\right)\\ =x^2-6x+9\)