论文部分内容阅读
1．填空①当m______时，关于x的方程＝4是一元二次方程．②把方程x2－8x＋9＝0的左边配成一个完全平方式，得③若方程5x2＋mx－6=0的一个根是3，则它的另一个根是________④在实数范围内分解因式4x2＋8x－1＝________⑤方程（X－4)2＝4－X的实数根是③已知方稷2X2－5X－7＝0的
1. Fill in the blank 1 When m______, the equation for x = 4 is a quadratic equation. 2 Put the left side of the equation x2-8x+9=0 into a completely flat way, and get 3 If one root of the equation 5x2+mx-6=0 is 3, then the other root of it is ________4 Decomposition in the real number range Factor 4x2+8x- 1=________5 The real root of the equation (X-4)2=4-X is 3 known squares 2X2-5X-7=0