论文部分内容阅读
运用两个公式求一元二次方程根的不对称式的值,可以化繁为简,下面介绍其用法: 设ax2+bx+c=0(a≠0)有两个实根x1,x2,则根的一次不对称式mx1±nx2,可以表示成:mx1+nx2
Using two formulas to find the asymmetry of the root of a quadratic equation, you can simplify it. Here’s how to use it: Let ax2+bx+c=0 (a≠0) have two real roots x1, x2, Then an asymmetry of the root mx1±nx2 can be expressed as: mx1+nx2