x^2-10x+25
1个回答
x^2-10x+25
=(x-5)²
相关问题
x/x^2-25-5/x^2+10x+25
10^(2x)=25 10^(-x)=?
约分:(2x²-10x)/(x²-10x+25)
x=2X[1.25(x-10)-10]
((10+5x)/25)^2-2((2x+2)/25)=1,x=
25x^2+10x+1
=(x-5)^2为什么等于x^2-10x+25(为什么有-10x)
10(x+1)^2-25(x+1)+10=0 5x^2-2x=0
2*10+2.5(x-10)≥25
(x+y)^2-10(x+y)^2+25