Question

[Vũ Bảo Châu]

D=500-{5.[409-(2^3 . 3 + 21)^2]-1724}

Answer 1

[Nguyễn Thị Thương Hoài]

D = 500 - {5.[409 - (2³ . 3 + 21)²] - 1724}

D = 500 - {5.[409 - (8 . 3 + 21)²] - 1724}

D = 500 - {5.[409 - (24 + 21)²] - 1724}

D = 500 - {5.[409 - 45²] - 1724}

D = 500 - {5.[409 - 2025] - 1724}

D = 500 - {5.(-1616) - 1724}

D = 500 - {-8080 - 1724}

D = 500 - (-9804)

D = 500 + 9804

D = 10304

Answer 2

[Trần Đình Thiên]

D=500-\(\left\{5\cdot[409-\left(2^3\cdot3+21\right)^2-1724\right\}\)=500-\(\left\{5\cdot[409-45^2-1724]\right\}\)

=500-\(\left\{5\cdot[409-2025-1724]\right\}\)=500-\(\left\{5\cdot\left(-3340\right)\right\}\)=500+16700=17200.