x/x^2-25-5/x^2+10x+25
1个回答
原式=x/(x+5)(x-5)-5/(x+5)²
=[x(x+5)-5(x-5)]/(x+5)²(x-5)
=(x²+25)/[(x+5)²(x-5)]
相关问题
((10+5x)/25)^2-2((2x+2)/25)=1,x=
(x+5y)(x-5y)等于A.25y2-x2B.x2+25y2C.x2-25y2D.x2+10xy+25y2
化简:x^2-5x/x^2-10x+25
10(x+1)^2-25(x+1)+10=0 5x^2-2x=0
=(x-5)^2为什么等于x^2-10x+25(为什么有-10x)
2*10+2.5(x-10)≥25
(5x^4-10x^3y+25x^2y^2)/(-5x^2)
字数太多 在下面,4(x+1)²=25(x-2)²4(x+1)²-25(x-2)²=0(2x+2)²-(5x-10)²=
10^(2x)=25 10^(-x)=?
x^2-10x+25