因式分解.(1)X4-1998x2+1999x+1998 (2) x3-3x2-13x+15
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/06 01:54:52
xQJ0I(YIa]Ó E/9`DE;ji
~ISX.D?Z.i.G.GQ(#9ȀR0 >OFioǟ6;ד8fֲ&Xf({>,Xbj7H;PF6%B!
A%ヶR`K[+Fx#蟥G'.S~xΗyoTSmtu.L"0D 6܋
因式分解.(1)X4-1998x2+1999x+1998 (2) x3-3x2-13x+15
因式分解.(1)X4-1998x2+1999x+1998 (2) x3-3x2-13x+15
因式分解.(1)X4-1998x2+1999x+1998 (2) x3-3x2-13x+15
.(1)X4-1998x2+1999x+1998 修改一下吧
X4-1998x2+1999x-1998
=x^4+x-1998 (x²-x+1)
=x(x+1)(x²-x+1)-1998(x²-x+1)
=(x²-x+1)(x²+x-1998)
(2) x3-3x2-13x+15
=x³-x²-(2x²+13x-15)
=x²(x-1)-(2x+15)(x-1)
=(x-1)(x²-2x-15)
=(x-1)(x+3)(x-5)
(1)求确认式子是否正确
(2)结果为:(x + 3)(x - 1)(x - 5)
因式分解x4+x2+1,
x2+x4+1 因式分解
x5-x4+x3-x2+x-1因式分解
X5-X4+X3+X2+X+1因式分解
因式分解:x4+x3+2x2 +x+1
因式分解.(1)X4-1998x2+1999x+1998 (2) x3-3x2-13x+15
x4+2x3+x2+1+2(x+x2)因式分解
因式分解x4-13x2+36
因式分解:x5-x4+x3-x2+x-1(数字表示几次方)
x8+x7+x6 +x5+x4+x3+x2+x+1因式分解
因式分解:x4+7x3+14x2+7x+1
x8+x7+x6+x5+x4+x3+x2+x+1因式分解
因式分解x4-1
x5+x4+1因式分解
因式分解x4+1急.
X4-13x2+36 因式分解的思路
4x4-3x2+9 因式分解
x4-x3+6x2-x+15因式分解