(1)(1+x)2=1.0455(2)(x-40)·[500-10(x-50)]=8 000
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(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.
(1)(1+x)2=1.0455
(2)(x-40)·[500-10(x-50)]=8 000
要完整的解题公式.
![(1)(1+x)2=1.0455(2)(x-40)·[500-10(x-50)]=8 000](/uploads/image/z/18782214-6-4.jpg?t=%EF%BC%881%EF%BC%89%281%2Bx%292%3D1.0455%EF%BC%882%EF%BC%89%28x-40%29%C2%B7%5B500-10%28x-50%29%5D%3D8+000)
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
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
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