Question

tính

3³.5³- 20 . {300-[546-2³.(7⁸:7⁶+7⁰)]}

Answer 1

\(3^3.5^3-20.\left\{300-\left[546-2^3.\left(7^8:7^6+7^0\right)\right]\right\}\)

= \(27.125-20.\left\{300-\left[546-8.50\right]\right\}\)

= \(3375-20.\left\{300-\left[546-400\right]\right\}\)

= \(3375-20.\left\{300-146\right\}\)

= \(3375-20.154=3375-3080=295\)

Đáp án hoàn toàn chính xác đấy.

Chúc bạn học tốt :))

Answer 2

3³.5³-20.{ 300-[ 546-2³.(7⁸:7⁶+7⁰)]}

=-98-20.{300- [546-8.50]}

=-98-20.{300-[546-400]}

=-98-20.{300-146}

=-98-20.154

=-3178

Chúc bạn học tốt Khanh Nhí

Answer 3

\(=\)\(3^3.5^3-20.\left\{300-\left[546-2^3.\left(7^8:7^6+7^0\right)\right]\right\}\)

\(=\)\(27.125-20.\left\{300-\left[546-2^3.\left(49+1\right)\right]\right\}\)

\(=\)\(3375-20.\left\{300-\left[546-8.50\right]\right\}\)

\(=3375-20\left(300-146\right)\)

\(=3375-20.154\)

\(=3375-3080\)

\(=295\)

Answer 4

\(3^3.5^3-20.\left\{300-[546-2^3.\left(7^8:7^6+7^0\right)]\right\}\)

\(=\left(3.5\right)^3-20.\left\{300-[546-8.\left(7^2+1\right)]\right\}\)

\(=3375-20.\left\{300-[546-8.\left(49+1\right)]\right\}\)

\(=3375-20.\left\{300-[546-8.50]\right\}\)

\(=3375-20.\left\{300-[546-400]\right\}\)

\(=3375-20.\left(300-146\right)\)

\(=3375-20.154\)

=3375-3080=295