Question

X cube minus 3 x square - 6 X + 8 upon x minus 4

Answer 1

x^2-3x-6=0......1

x^2-4x+8=0......2

solving both 1 or 2

multiply 1 by 4 or 2 by 3

then equations becomes

4x^2-12x-24=0

3x^2-12x-24=0

then x=0

hopes helps you dear friend