x^2+5x-150=0,求X
1个回答
x²+5x-150=0
(x-10)(x+15)=0
x-10=0或x+15=0
x=10或x=-15
相关问题
(x+0.5)(10+100/x)=150
600-150x=0.5x*400
求lim(x→-∞)[(x^2+x)^0.5-(x^2-x)^0.5]
即:x²-200x+7500=0 (x-150)(x-50)=0.怎么求.
0.3x*20+0.3*150*10+0.1*(x-150)*10-0.2x*30=?
解不等式组0.3x+0.1(150-x)≤10.2.0.1x+0.1(150-x)≤10.2
解下列方程:1+[150−x/1.5x]+[1/2]=[150/x].
解方程:150/(x+0.5)-100/x=10
150/(x+10)=100/x+0.5 解一下= =
求未知数x.(1)436÷x=10×25% (2)x-108÷1.5=70÷150% (3)0.4:[4/5]=x:60