一道数学题谁知道啊
分解因式:x^5+x^4+x^3+x^2+x+1
参考答案:原式=x^4(x+1)+x^2(x+1)+(x+1)
=(x+1)(x^4+x^2+1)
=(x+1)[(x^4+2x^2+1)-x^2]
=(x+1)[(x^2+1)^2-x^2]
=(x+1)(x^2+x+1)(x^2-x+1)
分解因式:x^5+x^4+x^3+x^2+x+1
参考答案:原式=x^4(x+1)+x^2(x+1)+(x+1)
=(x+1)(x^4+x^2+1)
=(x+1)[(x^4+2x^2+1)-x^2]
=(x+1)[(x^2+1)^2-x^2]
=(x+1)(x^2+x+1)(x^2-x+1)