10(x +2) -29(x+2) +10怎么做
来源:百度知道 编辑:UC知道 时间:2024/07/08 13:53:59
10(x +2) -29(x+2) +10怎么做???????
请用十字相乘法!!!,把步骤1步1步写下来,谢谢原题打错了,是:10(x +2)的平方 -29(x+2) +10
请用十字相乘法!!!,把步骤1步1步写下来,谢谢原题打错了,是:10(x +2)的平方 -29(x+2) +10
10(x +2) -29(x+2) +10
=10x+20-29x-58+10
=-19x-28
10+(X+2)的平方-29X+58+10
=10+XX+4-29X+68
=XX-29X+10+4+68
=XX-29X+82
这个怎么做,怎么解??
化简还是...
10(x +2) -29(x+2) +10
=10x+20-29x-58+10
=-19x-28
比较多,呵呵,我今天急用,大家辛苦帮我收集一下答案吧,谢谢!!!
10+(X+2)的平方-29X+58+10
=10+XX+4-29X+68
=XX-29X+10+4+68
=XX-29X+82
=10的平方-29+10
=100-29+10
=81
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