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一元二次方程解应用题是在学习解一元二次方程后的应用,实际上就是利用一元二次方程来解决诸如增长(降低)率、传播、数字、面积等实际问题。1.一元二次方程解应用题的大致过程是:(1)剖析题意。细心阅读题目寻找已知数量和未知数量,弄清数量之间的关系,这是解答一元二次方程应用题的基础。(2)根据问题恰当设未知数,大多数题目采取直接设法,个别要间接设,要按照题的实际灵活运用。恰当设未知数才会较容
The solution to the quadratic equation solution is to apply the solution of the quadratic equation after solving the problem. In fact, it is to solve the practical problems such as growth (decrease) rate, propagation, number and area by using the quadratic equation. 1. One yuan quadratic equation solution The general process is: (1) Analysis of the questions. Carefully read the title to find the number of known and unknown quantities, to clarify the relationship between quantity, which is the answer to the quadratic equation application questions based. (2) According to the problem properly set unknown, most of the topics to take direct approach, individual should be indirectly set, according to the actual application of the question. Properly set the unknown will be more tolerant