8x^2-10x+5=0

问题描述:

8x^2-10x+5=0

x=[-b±√((b)² - 4(a)(c))]/2(a)
x=[10±√((10)² - 4(8)(5))]/2(5)
x=[10±√(-60)]/10
x=1±√(-60)/10
x=1+0.774596669i
x=1-0.774596669i