X的4次方减15乘X的平方加10X加24等于0_数学解答

X的4次方减15乘X的平方加10X加24等于0

人气：367 ℃　时间：2020-01-29 01:05:55

解答

x^4-15x^2+10x+24=0x^4-15x^2+44+10x-20=0(x²-11)(x²-4)+10(x-2)=0(x+2)(x-2)(x²-11)+10(x-2)=0(x-2)(x³+2x²-11x-12)=0(x-2)[x(x+1)²-12(x+1)]=0(x-2)(x+1)(x²+x-12）=0(x-2)(x+...