由（x+1/2）²×（x²-1/2x+1/4）²
要求计算还是分解因式?计算（x²+x+1/4）（x^4+1/4x²+1/16-x³+1/2x²-1/4x)=(x²+x+1/4)(x^4-x³+3/4x²-1/4x+1/16)=x^6-x^5+3/4x^4-1/4x³+1/16x²+x^5-x^4+3/4x³-1/4x²+1/16x+1/4x^4-1/4x³+3/16x²-1/16x+1/64=x^6+1/4x³-1/8x²++1/64.