(1)(1+x)2=1.0455(2)(x-40)·[500-10(x-50)]=8 000
问题描述:
(1)(1+x)2=1.0455(2)(x-40)·[500-10(x-50)]=8 000
(1)(1+x)2=1.0455
(2)(x-40)·[500-10(x-50)]=8 000
要完整的解题公式.
答
教你怎样解方程,但重要的是你要了解它的过程.祝你学习快乐!
2+2x=1.0455
2x=-0.9545
x=-0.9545/2(除于)
x=-0.47725
(x-40)-(500-10x-500)=8000
x-40-500-10x-500=8000
-9x=9040
x=1004.44