3道简单的分式方程,1.3/(1-x^) = 2/(1+2x+x) - 5/1-2x+x^2.5x/(x^+x-6) + (2x-5)/(x^-x-12) = (7x-10)/(x^-6x+8)3.(x+1)/(x+2) + (x+6)/(x+7) = (x+2)/(x+3) + (x+5)/(x+6)
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/30 07:02:02
![3道简单的分式方程,1.3/(1-x^) = 2/(1+2x+x) - 5/1-2x+x^2.5x/(x^+x-6) + (2x-5)/(x^-x-12) = (7x-10)/(x^-6x+8)3.(x+1)/(x+2) + (x+6)/(x+7) = (x+2)/(x+3) + (x+5)/(x+6)](/uploads/image/z/9213289-25-9.jpg?t=3%E9%81%93%E7%AE%80%E5%8D%95%E7%9A%84%E5%88%86%E5%BC%8F%E6%96%B9%E7%A8%8B%2C1.3%2F%281-x%5E%29+%3D+2%2F%281%2B2x%2Bx%29+-+5%2F1-2x%2Bx%5E2.5x%2F%28x%5E%2Bx-6%29+%2B+%282x-5%29%2F%28x%5E-x-12%29+%3D+%287x-10%29%2F%28x%5E-6x%2B8%293.%28x%2B1%29%2F%28x%2B2%29+%2B+%28x%2B6%29%2F%28x%2B7%29+%3D+%28x%2B2%29%2F%28x%2B3%29+%2B+%28x%2B5%29%2F%28x%2B6%29)
3道简单的分式方程,1.3/(1-x^) = 2/(1+2x+x) - 5/1-2x+x^2.5x/(x^+x-6) + (2x-5)/(x^-x-12) = (7x-10)/(x^-6x+8)3.(x+1)/(x+2) + (x+6)/(x+7) = (x+2)/(x+3) + (x+5)/(x+6)
3道简单的分式方程,
1.3/(1-x^) = 2/(1+2x+x) - 5/1-2x+x^
2.5x/(x^+x-6) + (2x-5)/(x^-x-12) = (7x-10)/(x^-6x+8)
3.(x+1)/(x+2) + (x+6)/(x+7) = (x+2)/(x+3) + (x+5)/(x+6)
3道简单的分式方程,1.3/(1-x^) = 2/(1+2x+x) - 5/1-2x+x^2.5x/(x^+x-6) + (2x-5)/(x^-x-12) = (7x-10)/(x^-6x+8)3.(x+1)/(x+2) + (x+6)/(x+7) = (x+2)/(x+3) + (x+5)/(x+6)
1.3/(1-x^) = 2/(1+2x+x) - 5/1-2x+x^
3/-(X+1)(X-1)=2/(X+1)^-5/(X-1)^
-3(X+1)(X-1)=2(X-1)^-5(X+1)^
-3X^+3=-3X^-14X-3
X=-6/14
2.5x/(x^+x-6) + (2x-5)/(x^-x-12) = (7x-10)/(x^-6x+8)
5X/(X+3)(X-2)+(2X-5)/(X+3)(X-4)=(7X-10)/(X-2)(X-4)
5X(X-4)+(2X-5)(X-2)=(7X-10)(X+3)
-29X+10=11X-30
X=1
3.(X+1/X+2)-(X+2/X+3)=(X+5/X+6)-(X+6/X+7)
(X方+4X+3-X方-4X-4)/(X方+5X+6)=(X方+12X+35-X方-12X-36)/(X方+13X+42)
X方+5X+6=X方+13X+42
-8X=36
X=-9/2
1. 3/(1-x^) = 2/(1+2x+x) - 5/1-2x+x^
3/-(X+1)(X-1)=2/(X+1)^-5/(X-1)^
-3(X+1)(X-1)=2(X-1)^-5(X+1)^
-3X^+3=-3X^-14X-3
X=-6/14
2. 5x/(x^+x-6) + (2x-5)/(x^-x-12) = (7x-10)/(x^-6x+8)
5X/(X+3)(X-2)+(2X-5)/(X+3)(X-4)=(7X-10)/(X-2)(X-4)
5X(X-4)+(2X-5)(X-2)=(7X-10)(X+3)
-29X+10=11X-30
X=1