6X^4+5X^3-38X^2+5X+6
=(6x^4-15x^3+6x^2)+(20x^3-50x^2+20x)+(6x^2-15x+6)
=3x^2(2x^2-5x+2)+10x(2x^2-5x+2)+3(2x^2-5x+2)
=(3x^2+10x+3)(2x^2-5x+2)
=(3x+1)(x+3)(2x-1)(x-2)
如果本題有什么不明白可以追問(wèn),如果滿(mǎn)意請(qǐng)點(diǎn)擊“好評(píng)”
如果有其他問(wèn)題請(qǐng)采納本題后另發(fā)點(diǎn)擊向我求助,答題不易,請(qǐng)諒解,謝謝.
祝學(xué)習(xí)進(jìn)步!