3x^5-10x^4-8x^3-3x^2+10x+8
=(3x^5-3x^2)-(10x^4-10x)-(8x^3-8)
=3x^2(x^3-1)-10x(x^3-1)-8(x^3-1)
=(x^3-1)(3x^2-10x-8)
=(x-1)(x^2+x+1)(x-4)(3x+2)
謝謝>--<
3x^5-10x^4-8x^3-3x^2+10x+8
=(3x^5-3x^2)-(10x^4-10x)-(8x^3-8)
=3x^2(x^3-1)-10x(x^3-1)-8(x^3-1)
=(x^3-1)(3x^2-10x-8)
=(x-1)(x^2+x+1)(x-4)(3x+2)
謝謝>--<