作业帮奥数计算题：（0.37+0.29+2）×﹙0.37＋0.29＋0.17﹚－﹙2＋0.37＋0.29＋0.17﹚×﹙0.37＋0.2﹚
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/05 19:18:42
奥数计算题：（0.37+0.29+2）×﹙0.37＋0.29＋0.17﹚－﹙2＋0.37＋0.29＋0.17﹚×﹙0.37＋0.2﹚
奥数计算题：（0.37+0.29+2）×﹙0.37＋0.29＋0.17﹚－﹙2＋0.37＋0.29＋0.17﹚×﹙0.37＋0.2﹚
奥数计算题：（0.37+0.29+2）×﹙0.37＋0.29＋0.17﹚－﹙2＋0.37＋0.29＋0.17﹚×﹙0.37＋0.2﹚
（0.37+0.29+2）×﹙0.37＋0.29＋0.17﹚－﹙2＋0.37＋0.29＋0.17﹚×﹙0.37＋0.29﹚
设0.37＋0.29=a
则原式可化为
(a+2)(a+0.17)-(2+a+0.17)a
=a²+0.17a+2a+0.34-2a-a²-0.17a
=0.34
或者
[(0.37＋0.29)+2][(0.37＋0.29)+0.17]-[2+(0.37＋0.29)+0.17](0.37＋0.29)
=(0.37＋0.29)²+0.17(0.37＋0.29)+2(0.37＋0.29)+0.34-2(0.37＋0.29)-(0.37＋0.29)²-0.17(0.37＋0.29)
=0.34
（0.37+0.29+2）×﹙0.37＋0.29＋0.17﹚－﹙2＋0.37＋0.29＋0.17﹚×﹙0.37＋0.2﹚
=
（0.37+0.29+2）×﹙0.37＋0.29＋0.17﹚－﹙2﹚×﹙0.37＋0.2﹚-
﹙0.37＋0.29＋0.17﹚×﹙0.37＋0.2﹚
=2.09*（0.83）-1.14