\(8:x^2\)+3 >0

8+\(3^2\)>0

\(3^2\)>8

\(x^2\)>8/3

X>căn 8/3

Đúng ko bạn????

\(\dfrac{2x+1}{3}-\dfrac{x-1}{2}< 3\)

\(\Leftrightarrow\dfrac{2\left(2x+1\right)-3\left(x-1\right)}{6}< \dfrac{18}{6}\)

\(\Leftrightarrow2\left(2x+1\right)-3\left(x-1\right)< 18\)

\(\Leftrightarrow4x+2-3x+3< 18\)

\(\Leftrightarrow x< 13\)

Vậy \(S=\left\{x|x< 13\right\}\)

`3xx(x-1/6)-2xx(x-1/3)=2/3`

`3x-1/2-2x+2/3=2/3`

`x=2/3-2/3+1/2`

`x=1/2`

`3x(x-1/6)-2x(x-1/3)=2/3`

`3x^2 - 1/2 x- 2x^2 + 2/3x = 2/3`

`x^2+1/6 x =2/3`

`x=(-1 \pm \sqrt97)/12`

12+12+8x2

=6x2+6x2+8x2

=2x(6+6+8)

=2x20

=40

12 + 12 + 8 x 2

= 24 + 16

= 40

HT

TL:

= 12 x 2 + 8 x 2

= ( 12 + 8 ) x 2

= 20 x 2 

= 40

_HT_

\(a,-2.\left(x+7\right)+3.\left(x-2\right)=-2\)

                \(-2x-14+3x-6=-2\)

                                         \(x-20=-2\)

                                                    \(x=-2+20\)

                                                    \(x=18\)

\(b,-7-2x=-37-\left(-26\right)\)

      \(-7-2x=-11\)

               \(-2x=-11+7\)

               \(-2x=-4\)

                     \(x=2\)

\(c,\left(3x+9\right).\left(11-x\right)=0\)

\(\Leftrightarrow\orbr{\begin{cases}3x+9=0\\11-x=0\end{cases}\Leftrightarrow\orbr{\begin{cases}x=-3\\x=11\end{cases}}}\)

\(\orbr{\begin{cases}3x+9=0\\11-x=0\end{cases}}\Rightarrow\orbr{\begin{cases}3x=-9\\x=11\end{cases}}\Rightarrow\orbr{\begin{cases}x=-3\\x=11\end{cases}}\)

      5 + 5 + 5 x 5

=( 5 + 5 ) + ( 5 x 5 )

=    10     +      25

=            35

Chúc bạn hok tốt Tinagame And music

5+5+5x5=35

bang 30 nha

Câu 1: =97103103129

Câu 2: Cái bóng

Câu 2 : Cái bóng

cai bong