Marty6891
11-20-2011, 13:53
隨便唸一唸,居然算出來了,還出現第二個答案 >"<
我一開始只想試看看,把x=3, 然後算一算,
x平方加3x+2 = 20,x等於多少 ?
其實我也不會求解,早就還給老師了...不過...Siri
https://iphone4.tw/phpupload/savefiles/201111200152369d31e3b50b32b4f52e4112cc0fcca963.PNG
https://iphone4.tw/phpupload/savefiles/2011112001524114860cd22244962b8ade638e017099e9.PNG
我一開始只想試看看,把x=3, 然後算一算,
x平方加3x+2 = 20,x等於多少 ?
其實我也不會求解,早就還給老師了...不過...Siri
https://iphone4.tw/phpupload/savefiles/201111200152369d31e3b50b32b4f52e4112cc0fcca963.PNG
https://iphone4.tw/phpupload/savefiles/2011112001524114860cd22244962b8ade638e017099e9.PNG