trl sẽ có like

a=8x3x6x4x(427+573)

a=8x3x6x4x1000

a=576000

4x5x6/3x10x8=120/240=120:120/240:120=1/2 nha

~HT~

k cho mình nha

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Bằng 1/2b nha k nhaaa

\(\left(x-1\right)-\left(x-1\right)^3=00\)

\(\Rightarrow\left(x-1\right)\left(1-\left(x-1\right)^2\right)=0\)

\(\Rightarrow\left(x-1\right)\left(1-x^2+2x-1\right)=0\)

\(\Rightarrow\left(x-1\right)\left(-x^2+2x\right)=0\)

\(\Rightarrow\orbr{\begin{cases}x-1=0\\-x+2x=0\end{cases}}\Rightarrow\orbr{\begin{cases}x=1\\x\left(2-x\right)=0\end{cases}}\)

\(\Rightarrow\)x=1 hoặc x=0 hoặc x=2

SORRY NHA CHỖ NÀY MÌNH KO VIẾT ĐC :V

CHÚC BẠN HỌC TỐT!

\(\left(x-1\right)-\left(x-1\right)^3=0\)

\(\Leftrightarrow\left(x-1\right)\left[1-\left(x-1\right)^2\right]=0\)

\(\Leftrightarrow\left(x-1\right)\left(1-x+1\right)\left(1+x-1\right)=0\)

\(\Leftrightarrow x\left(x-1\right)\left(2-x\right)=0\)

\(\Leftrightarrow x=0;x=1;x=2\)

Vậy tập nghiệm phương trình là S = { 0 ; 1 ; 2 } 

cảm ơn nhiều ~

A : 3 - 2 = -x + 1/7

     1 = -x + 1/7

x= 1/7 -1

x = -6/7

B: 4/5 + (-1/9) = 8/7 -x 

31/45 = 8/7 -x

x= 8/7 -31/45

x=143/315 

C: [x-1/3] =10

=> 10\(\le\)3x-1/3 \(< \)11

=> 30 \(\le\)3x-1 \(< \)33

=> 31\(\le3x\)<34

<=> 11\(\le x< 12\)

=> x=11 

D: [ -x + 2/5 ] = 3,5 -1/2

[-5x+2/5]=3

=> 3\(\le\)-5x+2/5 <4

=> 15\(\le\)-5x+2 <20

=> 13\(\le\)-5x< 18

=> -3\(\ge\)x>-4

=> x = -3 

`x/(2*2)+x/(3*4)+x/(6*4)+x/(8*5)+x/(10*6)=5`

`x/4 +x/12 +x/24 +x/45 + x/60 =5`

`x(1/4 +1/12 +1/24 +1/40 +1/60)=5`

`x( (30+10+5+3+2)/120 ) =5`

`x *50/120 =5`

`x = 5 *120/50 =12`

\(\dfrac{x}{4}+\dfrac{x}{12}+\dfrac{x}{24}+\dfrac{x}{40}+\dfrac{x}{60}=5\)

\(\Leftrightarrow x\left(\dfrac{1}{4}+\dfrac{1}{12}+\dfrac{1}{24}+\dfrac{1}{40}+\dfrac{1}{60}\right)=5\)

\(\Leftrightarrow x.\dfrac{5}{12}=5\)

\(\Leftrightarrow x=12\)

thanks tv cuber nhé