3/(8-4x)将分母化为4(x+1)(x-2)要详解.
问题描述:
3/(8-4x)将分母化为4(x+1)(x-2)要详解.
答
3/(8-4x)=3/[4(2-x)]=[3(x+1)]/[4(x+1)(2-x)]=[ - 3(x+1)]/[4(x+1)(x-2)]
3/(8-4x)将分母化为4(x+1)(x-2)要详解.
3/(8-4x)=3/[4(2-x)]=[3(x+1)]/[4(x+1)(2-x)]=[ - 3(x+1)]/[4(x+1)(x-2)]