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应用数学知识解决实际问题是学习数学的目的,灵活应用代数式,可以解决许多实际问题.请看: 例1 用a米长的篱笆材料,在空地上围成一个绿化场地,
Applying mathematics knowledge to solve practical problems is the purpose of learning mathematics. Flexible use of algebraic formulas can solve many practical problems. Please see: Example 1 Using a meter long fence material, a green space is formed on the open space.