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对于因式分解来讲,我们最熟悉的是“提公因式、十字相乘、公式法”等,但命题者不会轻易让我们看到以上大家都熟悉的东西,而会用各种方法进行伪装,比如增加项数,提高次数,增大系数和常数唬我们;移动各项位置迷我们;或者结合其他知识。变换题目形式难我们等.能否把题目解出,就看我们拆除陷阱的功夫了.
For factorization, what we are most familiar with is the “Public Factor, Cross Multiplication, Formula Method” and so on, but the propositioners will not easily let us see what we are all familiar with, but use various methods. Disguise, such as increasing the number of items, increasing the number of times, increasing the coefficients and constants 唬 us; moving each position to confuse us; or combining other knowledge. Changing the form of the subject is difficult for us to wait. Can we solve the problem by looking at our effort to dismantle the trap?