123+234+345-122+233+344

=702-699

=3

neu co dau ngoac la 3 nhung dung ra phai la 1157

Kết quả là 764 

NHA ^_^

764 nha bạn

70-8+123+234-111+789-222-111=1430

123+123=246

CHÚC BẠN HỌC TỐT

123 + 123 = 246 nha bạn

k nha

123+123=246

Ai tích cho tôi , tôi hứa sẽ tích lại

123 + 111 = 234

123 + 222 =345

111 + 0 =111

11167 x 0 = 0

123  + 111 = 234

234 + 222 = 456

111 + 0 = 111

11167 x 0 = 0

123+ 111= 234

234+222 = 456

111+0=111

11167 x 0= 0

=973026769

= 23096736

= 203

45667  x  21307973026769

98704  x  234  =23096736

609  \(\div\)3  = 203

hok tốt

\(45667\times21307=973026769\)

\(98704\times234=23096736\)

\(609\div3=203\)

_Chúc bạn học tốt_

=579 nha

579 nha bạn

123+456=579

HT

Lời giải:
\(=-5^{22}-(-222-(-122-100+5^{22}+2022))\)

\(=-5^{22}-(-222+122+100-5^{22}-2022)\)

\(=-5^{22}+222-122-100+5^{22}+2022\)

\(=(-5^{22}+5^{22})+222-(122+100)+2022=0+222-222+2022=2022\)

\(A=-5^{22}\left\{-222\left[-122-\left(100-5^{22}\right)+2022\right]\right\}\)

\(A=-5^{22}\left\{-222\left[1900-\left(100-5^{22}\right)\right]\right\}\)

\(A=-5^{22}\left[-222\left(1900-100+5^{22}\right)\right]\)

\(A=-5^{22}\left[-222\left(1800+5^{22}\right)\right]\)

\(A=-5^{22}\left(-399600-222\cdot5^{22}\right)\)

\(A=399600\cdot5^{22}+222\cdot5^{44}\)

Bài 1:

\(=-5^{22}+222+[-122-(100-5^{22})+2022]\)

\(=-5^{22}+222-122-100+5^{22}+2022\\ =(-5^{22}+5^{22})+(222-122-100)+2022\\ =0+0+2022=2022\)

Bài 2:

$2n^2+n-6\vdots 2n+1$

$\Rightarrow n(2n+1)-6\vdots 2n+1$

$\Rightarrow 6\vdots 2n+1$

$\Rightarrow 2n+1\in Ư(6)$

Mà $2n+1$ lẻ nên $2n+1\in \left\{\pm 1; \pm 3\right\}$

$\Rightarrow n\in \left\{0; -1; 1; -2\right\}$