x^4+2x^3+x^2-4因式分解(急需)(x^4+2x^3-9x^2-2x+8因式分解)
更新时间:2021-07-30 11:13:03 • 作者:MAURICE •阅读 7566
x^4+2x^3-9x^2-2x+8因式分解
原式
=(x^4-9x^2+8)+(2x^3-2x)
=(x^2-1)(x^2-8)+2(x^2-1)
=(x^2-1)(x^2+2x-8)
=(x+1)(x-1)(x-4)(x+2)
x^4+x^3+x^2+2因式分解
追加悬赏!追加悬赏!追加悬赏!
x^4+x^3+x^2+2
=(x^4+2x^2+1)-x^2+(x^3+1)
=(x^2+1)-x^2+(x+1)(x^2-x+1)
=(x^2-x+1)(x^2+x+1)+(x+1)(x^2-x+1)
=(x^2+2x+2)(x^2-x+1)
x^4+x^3+x^2+2
=(x^4-x^3+x^2)+2(x^3+1)
=x^2(x^2-x+1)+2(x+1)(x^2-x+1)
=(x^2+2x+2)(x^2-x+1)
x^4+x^3+x^2+2
=(x^4+x)+(x^3+1)+(x^2-x+1)
=(x+1)(x^3+1)+(x^2-x+1)
=(x+1)(x+1)(x^2-x+1)+(x^2-x+1)
=(x^2+2x+2)(x^2-x+1)
因式分解:x的四次方-3x²-4
x∧4-3x²-4
=(x²-4)(x²+1)
=(x+2)(x-2)(x²+1)
X的四次幂+4 因式分解
展开全部
(X^4)+4
=(X^4)+4X²+4-4X²
=(X²+2)²-(2X)²
=(X²+2+2X)(X²+2-2X)