回答:
#x = 1 "多重度1" x = 2 "多重度2"#
説明:
#f(x)= 4x ^ 2(x-2)-12x(x-2)+ 8(x-2)+ 0#
#色(白)(f(x))=(x-2)(4x ^ 2-12x + 8)#
#色(白)(f(x))= 4(x-2)(x ^ 2-3x + 2)#
#色(白)(f(x))= 4(x-2)(x-2)(x-1)#
#色(白)(f(x))= 4(x-2)^ 2(x-1)#
#rArr4(x-2)^ 2(x-1)= 0#
#rArr「根っこは」#
#x = 2 "多重度2"と "x = 1"多重度1 "#