(1)x4-12x+323(2)x4+7x3+14x2+7x+1
来源:学生作业帮助网 编辑:作业帮 时间:2024/10/23 04:50:18
(1)x4-12x+323(2)x4+7x3+14x2+7x+1
(1)x4-12x+323
(2)x4+7x3+14x2+7x+1
(1)x4-12x+323(2)x4+7x3+14x2+7x+1
(1)x4-12x+323
=(x^4+36x^2+324)-(36x^2+12x+1)
=(x^2+18)^2-(6x+1)^2
=(x^2+6x+19)(x^2-6x+17)
(2) x4+7x3+14x2+7x+1
=(x^4+2x^2+1)+(7x^3+21x^2+7x)-9x^2
=(x^2+1)^2-(3x)^2+7x(x^2+3x+1)
=(x^2+3x+1)(x^2-3x+1)+7x(x^2+3x+1)
=(x^2+3x+1)(x^2+4x+1)
晚上要是还没人来解,我就帮你算算~
(1)x4-12x+323(2)x4+7x3+14x2+7x+1
因式分解:x4-7x+1
因式分解x4+2x+1
[-(1/2)x4]x[-(1/2)x4]
谁会因式分解呀 1.x4-12x+3232.x4+7x3+14x2+7x+13.x4-11x2y2+y24.(x+3)(x2-1)(x+5)-20
-3x4+12x(1/3-5/2)
x4方-7x平方+1,因式分解
因式分解:x4+x3+2x2 +x+1
x+1/x=2 求x2+1/x2 x4+1/x4 的值x2+1/x2 x4+1/x4 2和4是平方。
练习一1.分解因式:(2)x10+x5-2;(4)(x5+x4+x3+x2+x+1)2-x5.2.分解因式:(1)x3+3x2-4;(2)x4-11x2y2+y2;(3)x3+9x2+26x+24;(4)x4-12x+323.3.分解因式:(1)(2x2-3x+1)2-22x2+33x-1;(2)x4+7x3+14x2+7x+1;(3)(x+y)3+2xy(1-x-y)-1;(
已知X+X分之1=2,求X4+X4分之1的值
6x+4(2x-1)+3x4(45-3x4)=171
已知 x2-7x-1=0,求x4+1/x4=?
已知x2+x+1=0 求x4+1/x4
已知x2-x-1=0,求x4+1/x4
用矩阵法姐方程组:2x1-3x2 +x 3-x4 =3 3x 1+x2 +x3 +x 4=0 4x1 -x2 -x 3-x4 =7 -2x 1-x3 +x3 +x4 =-5
因式分解第一题:(1)x3+3x2-4;(2)x4-11x2y2+y2;(3)x3+9x2+26x+24;(4)x4-12x+323因式分解第二题:(1)(2x2-3x+1)2-22x2+33x-1;(2)x4+7x3+14x2+7x+1;(3)(x+y)3+2xy(1-x-y)-1;(4)(x+3)(x2-1)(x+5)-20 以上两大题都是因式分解,要求
2x十(7一x)x4=20