ݷʱ : 2024/12/23 14:36:57һ µȫĶ
൱ڷ߶㣬ʹԭ壬õʽԭ̲ͬ⣮
ڷ̱ʱʱܲʺԭ̵ĸָԭ̵
ע⣺ɷʽתΪһԪһη̹УҪȥĸͱͬһʽʽΪ㣬㷽̱任ͬԭʹ÷ʽ̿ܲ˽ʽ̺ͱ飮
ɴ˿뵽ֻҪõxֵ˵ʽ(ĸ)ʽֵ㣬ԭ̵ĸʽֵΪ㣬ԭ̵ܱ֤ȷȽϼ㣮 1ⷽ
ѧʾĸʽ. ͶӰʾʽ
⣺ͬx(x-2)Լȥĸ 5(x-2)=7xʽ̣ x=5
飺x=-5ĸ x(x-2)=350
x=-5ԭ̵Ľ⣮ 2ⷽ
⣺ͬĸ(x-2)Լȥĸ 1=x-1-3(x-2) -3Ҫˣ ʽ̣ x=2
飺x=2ʱĸ(x-2)=0 x=2 ԭ⣮
ע⣺ҪѧһҪϸʽ. ()ܽ
ʽ̵һ㲽裺
1ڷ̵߶ĸԼȥĸΪʽ̣
2ʽ̣
3ʽ̵ĸĸDz㣬ʹĸΪĸԭ̵ȥ ()ϰ
̲P981ѧںڰдʦ ҵ
̲P1011 ߡ