Question

Calculati

15+{37+19×[91+15×(317-81×3)+15×[15×41-400)-13]}

{[(48×32-345)×2-(43×17-123)×3]+(23×2-12×3)×5-234

{76-[24-4×(16×3-12×4)]}×{[12×(76-24)-4×(16×3-12)×4]}

{211+20×[17+16×(16-3×5)+116×(125×14-124×13)-31]}


AM NEV URGENT!!

Answer 1

15+{37+19×[91+15×(317-81×3)+15×(15×41-400)-13]}=
=15+{37+19×[91+15×(317-243)+15×(615-400)-13]}=
=15+{37+19×[91+15×74+15×215-13]}=15+ {37+19× [78+15×(74 + 215)]}  =
=15+ [37+19× (78+15×289)]=15+ [37+19× (78+4335)]=15+ (37+19× 4413 )=
=15+ 37+83847 =83899

{[(48×32-345)×2-(43×17-123)×3]+(23×2-12×3)×5-234=
={[(1536-345)×2-(731-123)×3]+(46-36)×5-234=
=(1191×2- 608×3)+10×5-234= (2382- 1824)+50-234=
= 558+50-234= 374

{76-[24-4×(16×3-12×4)]}×{[12×(76-24)-4×(16×3-12)×4]}=
={76-[24-4×(64-48)]}×{[12×52-4×(48-12)×4]}=
=[76-(24-4×16)]×(12×52-4×36×4)=[76-(24-64)]×(624-576)=
=(76+40)×48=116×48=5568

{211+20×[17+16×(16-3×5)+116×(125×14-124×13)-31]}
={211+20×[17+16×(16-15)+116×(1750-1612)-31]}=
=[211+20×(17+16×1+116×138)-31]=
=[211+20×(17+16+16008)-31]=211+20×16041-31=180+20×16041=
=180+320820=321000