来自李远清的问题
解下列方程及不等式组:(1)(x+2)(x+5)-(x+1)(x+5)=42(2)x(2x−5)>2x2−2x−4(x+1)(x+2)+8x>(x+5)(x−5)−2.
解下列方程及不等式组:
(1)(x+2)(x+5)-(x+1)(x+5)=42
(2)
x(2x−5)>2x2−2x−4(x+1)(x+2)+8x>(x+5)(x−5)−2.
1回答
2020-11-30 14:10