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代数式的恒等变形及求值是一项基本功,应用十分广泛,它不但要运用各种代数知识,而且方法非常灵活.本人归纳出以下解题步骤,供大家参考;
Algebraic constant deformation and evaluation is a basic skill, and it is widely used. It not only uses various algebraic knowledge, but also is very flexible. I have summarized the following problem-solving steps for your reference;