(x+5)*(x+5)-x*x=225拜托各位高手了``谢谢了``快啊```````

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/01 21:26:18

(x+5)*(x+5)-x*x=225拜托各位高手了``谢谢了``快啊```````
(x+5)*(x+5)-x*x=225
拜托各位高手了``谢谢了``快啊```````

(x+5)*(x+5)-x*x=225拜托各位高手了``谢谢了``快啊```````
(x+5)*(x+5)-x*x=225
x*x+10x+25-x*x=225
10x=200
x=20