012x48012x48用简便方法计算=4.8*4.8=5*4.8-0.2*4.8=24-0.96=23.04=12/100*4.8*100/12*4.8=4.8*4.8=23.040.12/0.12*4.8*4.8０．１２÷０．１２ｘ４．８ｘ４．８＝４．８ｘ４．８＝2，用开平方的方法求x的值x20044x123249x20求全过程解：x2=0.04x=±√0.04x=±0.2x1=0.2x2=-0.24(x-1)2=324(x-1)2=324/4(x-1)2=81x-1=±√81x-1=±9x-1=

012x48012x48用简便方法计算=4.8*4.8=5*4.8-0.2*4.8=24-0.96=23.04=12/100*4.8*100/12*4.8=4.8*4.8=23.040.12/0.12*4.8*4.8０．１２÷０．１２ｘ４．８ｘ４．８＝４．８ｘ４．８＝2，用开平方的方法求x的值x20044x123249x20求全过程解：x2=0.04x=±√0.04x=±0.2x1=0.2x2=-0.24(x-1)2=324(x-1)2=324/4(x-1)2=81x-1=±√81x-1=±9x-1=

012x48012x48用简便方法计算=4.8*4.8=5*4.8-0.2*4.8=24-0.96=23.04=12/100*4.8*100/12*4.8=4.8*4.8=23.040.12/0.12*4.8*4.8０．１２÷０．１２ｘ４．８ｘ４．８＝４．８ｘ４．８＝2，用开平方的方法求x的值x20044x123249x20求全过程解：x2=0.04x=±√0.04x=±0.2x1=0.2x2=-0.24(x-1)2=324(x-1)2=324/4(x-1)2=81x-1=±√81x-1=±9x-1=

012x48012x48用简便方法计算=4.8*4.8=5*4.8-0.2*4.8=24-0.96=23.04=12/100*4.8*100/12*4.8=4.8*4.8=23.040.12/0.12*4.8*4.8０．１２÷０．１２ｘ４．８ｘ４．８＝４．８ｘ４．８＝2，用开平方的方法求x的值x20044x123249x20求全过程解：x2=0.04x=±√0.04x=±0.2x1=0.2x2=-0.24(x-1)2=324(x-1)2=324/4(x-1)2=81x-1=±√81x-1=±9x-1=

012x48012x48用简便方法计算=4.8*4.8=5*4.8-0.2*4.8=24-0.96=23.04=12/100*4.8*100/12*4.8=4.8*4.8=23.040.12/0.12*4.8*4.8０．１２÷０．１２ｘ４．８ｘ４．８＝４．８ｘ４．８＝2，用开平方的方法求x的值x20044x123249x20求全过程解：x2=0.04x=±√0.04x=±0.2x1=0.2x2=-0.24(x-1)2=324(x-1)2=324/4(x-1)2=81x-1=±√81x-1=±9x-1=

012x48012x48用简便方法计算=4.8*4.8=5*4.8-0.2*4.8=24-0.96=23.04=12/100*4.8*100/12*4.8=4.8*4.8=23.040.12/0.12*4.8*4.8０．１２÷０．１２ｘ４．８ｘ４．８＝４．８ｘ４．８＝2，用开平方的方法求x的值x20044x123249x20求全过程解：x2=0.04x=±√0.04x=±0.2x1=0.2x2=-0.24(x-1)2=324(x-1)2=324/4(x-1)2=81x-1=±√81x-1=±9x-1=

012x48012x48用简便方法计算=4.8*4.8=5*4.8-0.2*4.8=24-0.96=23.04=12/100*4.8*100/12*4.8=4.8*4.8=23.040.12/0.12*4.8*4.8０．１２÷０．１２ｘ４．８ｘ４．８＝４．８ｘ４．８＝2，用开平方的方法求x的值x20044x123249x20求全过程解：x2=0.04x=±√0.04x=±0.2x1=0.2x2=-0.24(x-1)2=324(x-1)2=324/4(x-1)2=81x-1=±√81x-1=±9x-1=

012x48012x48用简便方法计算=4.8*4.8=5*4.8-0.2*4.8=24-0.96=23.04=12/100*4.8*100/12*4.8=4.8*4.8=23.040.12/0.12*4.8*4.8０．１２÷０．１２ｘ４．８ｘ４．８＝４．８ｘ４．８＝2，用开平方的方法求x的值x20044x123249x20求全过程解：x2=0.04x=±√0.04x=±0.2x1=0.2x2=-0.24(x-1)2=324(x-1)2=324/4(x-1)2=81x-1=±√81x-1=±9x-1=

012x48012x48用简便方法计算=4.8*4.8=5*4.8-0.2*4.8=24-0.96=23.04=12/100*4.8*100/12*4.8=4.8*4.8=23.040.12/0.12*4.8*4.8０．１２÷０．１２ｘ４．８ｘ４．８＝４．８ｘ４．８＝2，用开平方的方法求x的值x20044x123249x20求全过程解：x2=0.04x=±√0.04x=±0.2x1=0.2x2=-0.24(x-1)2=324(x-1)2=324/4(x-1)2=81x-1=±√81x-1=±9x-1=

012x48012x48用简便方法计算=4.8*4.8=5*4.8-0.2*4.8=24-0.96=23.04=12/100*4.8*100/12*4.8=4.8*4.8=23.040.12/0.12*4.8*4.8０．１２÷０．１２ｘ４．８ｘ４．８＝４．８ｘ４．８＝2，用开平方的方法求x的值x20044x123249x20求全过程解：x2=0.04x=±√0.04x=±0.2x1=0.2x2=-0.24(x-1)2=324(x-1)2=324/4(x-1)2=81x-1=±√81x-1=±9x-1=