The reason why the equation x + 3 = 1-2x can be transformed into x + 2x = 1-3 is that______ ．

The reason why the equation x + 3 = 1-2x can be transformed into x + 2x = 1-3 is that______ ．

Based on: the basic properties of the equation 1

Solve the equation: 1, 4x + 2x = 160-2x 2, x-0.3x = 16 + 0.06x, gods help

1： 4X 2x = 160-2x; 8x = 160; X = 20. 2: x-0.3x-0.06x = 16; X = 1 / 25

Let f (x) = (2-3x) / (2x ^ 2-3x + 1) expand to Taylor series at x = 1
Let f (x) = (2-3x) / (2x ^ 2-3x + 1) expand to Taylor series at x = 1,

f(x)=(2-3x)/(2x-1)(x-1)
=(1-2x+1-x)/(2x-1)(x-1)
=1 / (1-x) + 1 / (1-2x), note t = X-1, then x = t + 1
=-1/t-1/(1+2t)
=-1/t-1+2t-4t²+8t³-...
This is the Taylor expansion of X-1