\(A=1500-\left\{5^3.2^3-11.\left[7^2-5.2^3+8\left(11^2-121\right)\right]\right\}\)

\(A=1500-\left\{125.8-11.\left[49-5.8+8\left(121-121\right)\right]\right\}\)

\(A=1500-\left\{1000-11\left[49-40+8.0\right]\right\}\)

\(A=1500-\left\{1000-11.9\right\}\)

\(A=1500-\left\{1000-99\right\}\)

\(A=1500-901=599\)

Ta tính các số mũ thành số hết

\(A=-1500-\left\{125.8-11.\left[49-40+8\left(121-121\right)\right]\right\}.2\)

\(A=-1500-\left\{1000-11.\left(9+0\right)\right\}.2\)

\(A=-1500-\left(1000-99\right).2\)

\(A=-1500-901.2\)

\(A=-1500-1802=-3302\)

A là j ??

???????? 

1500 - { 5³ . 2³ - 11. [ 7² - 5.2³ + 8..( 11² - 121 )]}

= 1500 - ( 5.2 )³ - 11. [ 49 - 40 + 8. 0 ]} 

= 1500 - 10³ - 11. 9 

= 1500 - 1000 - 99

= 401 

Chúc bn hc tốt <3

   1500-{5³.2³-11.[7²-5.2³+8.(11²-121)]}
= 1500-{125.8-11.[49-5.8+8.(121-121)]}
= 1500-{1000-11.[49-40+8.0]}
​= 1500-{1000-11.[9+0]}
​​= 1500-{1000-11.9}
​​​= 1500-{1000-99}
​​​​= 1500-901
= 599
Chúc bn học tốt! Kick cho mik nhé!

Bạn Acc Cold sai thì phải

1500-{5³.2³-11.[7²-5.2³+9.(11²-121)]}

=1500-{125.8-11.[49-5.8+8.(121-121)]}

=1500-{125.8-11.[49-8.(5+0)]}

=1500-{125.8-11.[49-8.5]}

=1500-{125.8-11.[49-40]}

=1500-{125.8-11.9}

=1500-{1000-99}

=1500-901

=699

1500 - {5³. 2³ - 11.[7² - 5.2³ + 8.(11² - 121)]} 

= 1500 - {125 . 8 - 11 . [49 - 5 . 8 + 8 . (121 - 121)]}

= 1500 - {1000 - 11 . [49 - 40 + 8 . 0]}

= 1500 - {1000 - 11 . [49 - 40 + 0]}

= 1500 - {1000 - 11 . 9}

= 1500 - (1000 - 99)

= 1500 - 901

= 599

hh

1) ban xem lai de di sao minh tinh ra so xau lam

2) a)24a+15b=3.8.a+3.5.b=3.(8a+5b)⋮3 => dpcm

b) Theo cau a thi 24a+15b⋮3 ma -2009 khong ⋮ 3

=> khong tim dc 2 so a,b thoa man