(-12)².x=56+10.13.x

144x=56+10.13x

144x=56+130x

144x-130x=56

14x=56

x=4

(- 12) .(- 12) . x = 56 + 10 . 13 . x

=> 144 . x = 56 + 130 . x

=> 144 . x - 130 . x = 56

=> x . (144 - 130) = 56

=> x . 14 = 56

=> x = 56 : 14

=> x = 4

Vậy x = 4.

~Study well~

#KSJ

\(\left(-12\right)\left(-12\right).x=56+10.13.x\)

\(144.x=56+130.x\)

\(144.x-130.x=56\)

\(x.\left(144-130\right)=56\)

\(x.14=56\)

\(x=56:14\)

\(x=4\)

( -12 ) . ( - 12 ) . x = 56 + 10 . 13 . x 

144.x = 56 + 130.x 

144x = 130x + 56 

=> 144x - 130x = 56 

    14x = 65 

x = 56 : 14 = 4 

Vậy x = 4

(-12)2.x = 56 + 10.13.x

144.x = 56 + 130.x

144x – 130 x = 56

14x = 56

x = 56: 14

x = 4

Vậy x = 4

Đợi tí mình giải cho

\(2\left|x+1\right|=10\)

Th1 : 

\(\left|x+1\right|\ge0\Rightarrow x\ge-1\)

\(2\left(x+1\right)=10\)

\(\Rightarrow2x+2=10\)

\(\Rightarrow2x=8\)

\(\Rightarrow x=4\)

Th2 : \(\left|x+1\right|< 0\Rightarrow x< -1\)

\(2\left(-1-x\right)=10\)

\(\Rightarrow-2-2x=10\)

\(\Rightarrow-2x=8\)

\(\Rightarrow x=-4\)

a, x=4;-6

a)(-12)². x = 56+10. 13

   (-12)². x = 56+130

   (-12)². x =186

=>144. x   = 186

            x   = 186 : 144= 1. 2916666667

Nếu đúng thì tick cho mik nha,  cảm ơn

(-12)².x = 56 + 10.13.x

=> 144.x = 56 + 130.x

=> 144.x-130.x=56

=> 14.x=56

=> x=56:14

=> x=4

(-12)^2.x=56+10.13.x

=>144.x=56+130x

=>144x-130x=56

=>14x=56

=>x=56:14

=>x=4

(-12)².x =56+10.13.x

144.x=56+130.x

144.x-130.x=56

14.x=56

x=\(\frac{56}{14}\)

x=4