-6
X^3+X^2-1=0,求X^3+2X^2-7=?
1个回答
相关问题
-
已知x²-3x+1=0,求2x^3-3x²-7x+2009,求x²+1/x²+2
-
已知x^2-3x+1=0,求2x^3-3x^2-7x+2009
-
已知x^2-3x+1=0,求2x^3-3x^2-7x+2009
-
2x^2+3x+1=0 2x^2-7x-15=0 3x^2-7x-6=0
-
(x1-x2+4x3-2x4=0;x1-x2-x3+2x4=0;3x1+x2+7x3-2x4=0;x1-3x2-12x3
-
1、x²+2x-3=0 2、x²-7x+6=0 3、x²+2x-1=0
-
(1)x^2-3x+1=0 (2)2x^2+6=7x (3)3x^2-9x+2=0 (4)2x^2+3x-2=0
-
(3x^2-2x+1)(3x^2-2x-7)=0
-
求齐次线性方程组X1+X2+X3+X4=0,2X1-5X2-5X3-2X4=0,7X1-7X2-5X3+X1=0的通解
-
已知X2+X-1=0,求X3+2X-7