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解方程：x2-4x-7=0（用公式法求解）
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根据二分法原理求解方程x2－2＝0得到的流程图可称为____________.
按要求解下列方程x2+x-3=0公式法
解方程x2+3x+1=0.公式法
用求根公式解方程x2－6x+5=0.
用公式法解方程2x2－4x－1＝0.
用公式法解方程3x2+52x+1=0
按要求解下列方程 1用配方法解方程2x2+7x﹣4=0 2用公式法解方程3x2﹣1=4x．
用下列哪种方法解方程3x2=16x最合适
开平方法
配方法
因式分解法
公式法
用公式法解方程x2－3x＝5
用公式法解方程2x2－4x－5＝0.
.用公式法解方程x2+x﹣1=0.
解方程x2+3x+1=0.公式法
用公式法解方程x2+3x﹣2=0
用公式法解方程xx﹣8=16．
用迭代法求解方程x5-x-1=0下列迭代公式不可能正确的是
A
B
C
D
用公式法解方程3x2﹣5x﹣1=0
用公式法解方程2xx－3=x－3.
①用因式分解法解方程3xx﹣1=2x﹣1 ②用公式法解方程x2﹣4x﹣7=0．
解方程5x2+2x﹣1=0用公式法解
解方程2xx+4=1用公式法
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教案备课库
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