作业帮若(x-7)/(x^2+x-6)=A/(x-2)=B/(x+3)求常数A、B的值
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若(x-7)/(x^2+x-6)=A/(x-2)=B/(x+3)求常数A、B的值
若(x-7)/(x^2+x-6)=A/(x-2)=B/(x+3)求常数A、B的值
若(x-7)/(x^2+x-6)=A/(x-2)=B/(x+3)求常数A、B的值
如图
A={x|x^2+x-6
A={x|x^2+x-6
若(A/x+2)+(B/x-3)=7x-1/x^2-x-6,求A,B的值
若A/x+2+B/x+3=7x+1/x²-x-6,求A,B
matlab中a(x)=x^4+3x^3+9x-18 b(x)=x^5-4x^3-18x+7 c(x)=x^7+6x^5+9x^3-5x^2-2 d(x)=x^9-8x^7+6x^5-4x^4+d(x)=x^9-8x^7+6x^5-4x^4+6x^2+3 求e(x)=a(x)*b(x)*c(x)*d(x)
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
若多项式2x*x*x*x-3x*x*x+ax*x+7x+b能被x*x+x-2整除,求a:b
X+X×X=56 (X+2)-(X×X+7)=-45 X+a=105 X=?a=?
若X^5-3x^4+7x^3-6x^2+2x+9=(x-a)(x-b)(x-c)(x-d)(x-e)则ab+ac+ad+ae+bc+bd+be+cd+ce+de=?
若x^5-3x^4+7x^3-6x^2+2x+9=(x-a)(x-b)(x-c)(x-d)(x-e)则ab+ac+ad+ae+bc+bd+be+cd=?
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（1） x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8(2) 已知x+3/(x-2)^2=A/x-2 + B/(x-2)^2 ,求A和B的值.
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
A={x/x^2-x-6>0},B={x/2x^+(2k+7)x+7k
填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x
x^2-6x+5= A(x-2)(x-3)B(x-6)(x+1)
1.x+9/x+8- x+10/x+9=x+6/x+5- x+7/x+6；2.x³+2/x²-x+1+ x³-9/x²+2x+4=2x-1；3.x-a-b/c+ x-b-c/a+ x-c-a/b=3.（空开的指另一个分式）第二题不用了。