Question

[Alan Becker]

Rút gọn:

a, A = 2x - 3,5 - | 4x + 4,8 | - 3x + 1

b, B = - | - 4 - 2,5x | + 4x - 6,2 - 5,2x

c, C = 2,2x - 6 + | 4,2 - 1,4 x | - 3x +1,2

Help me everyone!

Answer 1

[Nguyễn Ngọc Lộc]

a, \(A=-x-2,5-\left|4x+4,8\right|\)

\(b,B=-\left|-4-2,5x\right|-\dfrac{6}{5}x-6,2\)

\(c,C=\left|4,2-1,4x\right|-\dfrac{4}{5}x-\dfrac{24}{5}\)