\(\dfrac{x+8}{1092}+\dfrac{x+10}{1094}=\dfrac{x+12}{1096}+\dfrac{x+14}{1098}\)

\(\Leftrightarrow\left(\dfrac{x+8}{1092}-1\right)+\left(\dfrac{x+10}{1094}-1\right)\)\(=\left(\dfrac{x+12}{1096}-1\right)+\left(\dfrac{x+14}{1098}-1\right)\)

\(\Leftrightarrow\dfrac{x-1084}{1092}+\dfrac{x-1084}{1094}=\dfrac{x-1084}{1096}+\dfrac{x-1084}{1098}\)

\(\Leftrightarrow\dfrac{x-1084}{1092}+\dfrac{x-1084}{1094}-\dfrac{x-1084}{1096}-\dfrac{x-1084}{1098}=0\)

\(\Leftrightarrow\left(x-1084\right).\left(\dfrac{1}{1092}+\dfrac{1}{1094}-\dfrac{1}{1096}-\dfrac{1}{1098}\right)=0\)

\(\Rightarrow x-1084=0\Rightarrow x=1084\)

Vậy x=1084

ĐKXĐ: \(x\ge4\)

\(\sqrt{4x^2-16x+64}+2x=12\)

\(\Leftrightarrow\sqrt{\left(2x-8\right)^2}+2x=12\)

\(\Leftrightarrow\left|2x-8\right|+2x=12\)

Vì \(x\ge4\) \(\Rightarrow2x-8+2x=12\) 

\(\Leftrightarrow4x=20\)

\(\Leftrightarrow x=5\left(TM\right)\)

Vậy x = 5

Ta có  (4x-12)(x³+64)=0

Suy ra  4x - 12 = 0  hoặc  x³ + 64 = 0

=>   4x = 12        hoặc     x³ = - 64

=>   x = 3      hoặc    x = - 4

Vậy  x = 3  hoặc  x = - 4

(4x-12)(x³+64)=0

\(\Rightarrow\orbr{\begin{cases}4x-12=0\\x^3+64=0\end{cases}}\)\(\Rightarrow\orbr{\begin{cases}4x=12\\x^3=-64\end{cases}}\)\(\Rightarrow\orbr{\begin{cases}x=3\\x^3=\left(-4\right)^3\end{cases}}\)\(\Rightarrow\orbr{\begin{cases}x=3\\x=-4\end{cases}}\)

Vậy \(x\in\left\{3;-4\right\}\)

Hok tốt !

1.

$\sqrt{3x^2}-\sqrt{12}=0$

$\Leftrightarrow \sqrt{3x^2}=\sqrt{12}$

$\Leftrightarrow 3x^2=12$

$\Leftrightarrow x^2=4$

$\Leftrightarrow (x-2)(x+2)=0\Leftrightarrow x=\pm 2$

2. 

$\sqrt{(x-3)^2}=9$

$\Leftrightarrow |x-3|=9$

$\Leftrightarrow x-3=9$ hoặc $x-3=-9$

$\Leftrightarrow x=12$ hoặc $x=-6$

3.

$\sqrt{4x^2+4x+1}=6$

$\Leftrightarrow \sqrt{(2x+1)^2}=6$

$\Leftrightarrow |2x+1|=6$

$\Leftrightarrow 2x+1=6$ hoặc $2x+1=-6$

$\Leftrightarrow x=\frac{5}{2}$ hoặc $x=\frac{-7}{2}$

5*X + 3*X = 1096 

=> (5+3)*X = 1096

=> 8X = 1096

=>X = 1096 : 8 = 137

      5 x X + 3 x X =1096

<=> X x ( 5 + 3 ) = 1096

<=> X x 8           = 1096

  =>       X           =   1096 : 8

             X           =   137

5x X + 3 x X = 1096

  5x + 3x = 1096

    x.(5+3)  =  1096

    x.  8       =  1096

    x           =  1096 : 8

   x           =  137

\(\Leftrightarrow\sqrt{x-4}\left(4-12\cdot\dfrac{1}{2}+2\cdot2\right)=6\)

=>x-4=9

hay x=13

5x + 3x = 1096

➡️8x = 1096 

➡️x = 1096 ÷ 8 = 137

Hok tốt~

5 x x+ 3 x x = 1098

8x =1098

X = 1098 :8

X = 137

Vậy x = 137

5*x+3*x=1096

=> x*(5+3) = 1096

=> x * 8 = 1096

=> x = 1096 : 8

=> x = 137

5*x+3*x=1096

(5+3)*x=1096

8*x=1096

x=1096:8

x=137

vậy x = 137

5*x+3*x=1096

=> x*(5+3) = 1096

=> x * 8 = 1096

=> x = 1096 : 8

=> x = 137

Ai k mk mk k lại!