Question

Tìm x biết:

\(\left(2\text{x}-3\right)^2=\left|3-2\text{x}\right|\)

Answer 1

\(\left(2x-3\right)^2=\left|3-2x\right|\)

=>\(\left(2x-3\right)^2=\left|2x-3\right|\)

=>\(\left(2x-3\right)^2=2x-3\)  (1)

hoặc \(\left(2x-3\right)^2=-\left(2x-3\right)\)  (2)

Giải (1):

\(\left(2x-3\right)^2=2x-3\)

<=>\(\left(2x-3\right)^2-\left(2x-3\right)=0\)

<=>\(\left(2x-3\right)\left(2x-3-1\right)=0\)

<=>....(tự giải )

Giải (2):

\(\left(2x-3\right)^2=-\left(2x-3\right)\)

<=>\(\left(2x-3\right)^2-\left(-2x-3\right)=0\)

<=>\(\left(2x-3\right)^2+\left(2x+3\right)=0\)

<=>\(\left(2x+3\right).\left(2x+3+1\right)=0\)

<=>....(tự giải)

Vậy:.....

Answer 2

LOP 7 MA LOP 5 CUNG BIET LAM 

NHUNG KO THICH LAM

Answer 3

Kelvin Khánh lớp 5 chưa học lũy thừa bạn à