x +(0.4-35% )= ¼x½这个方程怎么解
问题描述：
x +(0.4-35% )= ¼x½这个方程怎么解
答
4x+0.2=x^1/2
16x^2+1.6x+0.04=x
16x^2+0.6x+0.04=0
x1=(-0.6-j2.2^1/2)/32
x2=(-0.6+j2.2^1/2)/32