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整式的加减能帮我们解决生活中的很多问题,下面就让我们跟随高乐佳同学看一看吧.在今天的数学课上,高老师给我们出了两道题,我没加思考,就抢答出了答案,结果老师宣布错误,幸亏整式的加减帮我找到了错因,到底是什么样的问题呢?问题1近几年房价涨得很厉害,国家为此出台了很多政策,可一些房地产公司依然变着法子涨价.银河房地产公司对外宣称:“我们开发楼盘的成本主要由地价、建筑材料费用、广告费用三部分构成,今年上半年地价上涨10%,建筑材料费用上涨10%,广告费用上涨10%,所以房价应上涨30%才能保本.”你认
The addition and subtraction of the whole formula can help us solve many problems in our life. Let’s take a look at it with Gao Lejia students. In today’s math class, Teacher Gao gave us two questions. I didn’t think about it. When the answer was answered, the teacher announced an error. Fortunately, the whole type of addition and subtraction helped me find the wrong cause. What kind of problem is it? Question 1 In recent years, prices have risen so badly that the state has introduced many policies. But some real estate companies are still changing the method of price increases. Galaxy Real Estate announced externally: “The cost of our development of real estate is mainly composed of three parts: land price, construction materials, and advertising costs. Land prices rose by 10% in the first half of this year and construction materials costs rose. 10%, advertising costs rose by 10%, so house prices should rise by 30% to preserve capital.”You recognize