{"id":18271,"date":"2024-03-13T09:39:50","date_gmt":"2024-03-13T09:39:50","guid":{"rendered":"https:\/\/soicau5059.minhngocxoso.com\/?p=18271"},"modified":"2024-03-13T09:39:50","modified_gmt":"2024-03-13T09:39:50","slug":"soi-cau-de-bang-phuong-phap-3-cay","status":"publish","type":"post","link":"https:\/\/dudoanlosongthu.com\/soi-cau-de-bang-phuong-phap-3-cay\/","title":{"rendered":"soi c\u1ea7u \u0111\u1ec1 b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p 3 c\u00e2y"},"content":{"rendered":"\n
Soi c\u1ea7u \u0111\u1ec1 b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p 3 c\u00e2y \u2013 B\u1ea1n \u0111\u00e3 bi\u1ebft ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh l\u00f4 \u0111\u1ec1 hi\u1ec7u qu\u1ea3 n\u00e0o ch\u01b0a? Trong b\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u1edbi thi\u1ec7u \u0111\u1ebfn c\u00e1c b\u1ea1n chi ti\u1ebft ph\u01b0\u01a1ng ph\u00e1p b\u1eaft \u0111\u1ec1 3 c\u00e2y \u0111\u00e3 \u0111\u01b0\u1ee3c nhi\u1ec1u b\u1ea1n \u00e1p d\u1ee5ng th\u00e0nh c\u00f4ng.<\/p>\n\n\n\n
Soi c\u1ea7u \u0111\u1ec1 b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p 3 c\u00e2y<\/p>\n\n\n\n
V\u00ed d\u1ee5: X\u1ebfp 2 s\u1ed1 \u0111\u1ec1 ra trong hai ng\u00e0y 1 v\u00e0 2.<\/p>\n\n\n\n
Ng\u00e0y 1 \u0111\u1ec1 ra 32<\/p>\n\n\n\n
Ng\u00e0y 2 \u0111\u1ec1 ra 22<\/p>\n\n\n\n
\u1ede ph\u01b0\u01a1ng ph\u00e1p n\u00e0y gi\u00fap b\u1ea1n soi c\u1ea7u s\u1ed1 \u0111\u1ec1 ra ng\u00e0y ti\u1ebfp theo \u0111\u00f3 l\u00e0 ng\u00e0y 3 \u0111\u1ec1 ra XX. \u0110\u1ec3 t\u00ecm ra \u0111\u01b0\u1ee3c s\u1ed1 X, ch\u00fang ta c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p c\u1ed9ng b\u00f9: Ng\u01b0\u1eddi ch\u01a1i l\u1ea5y m\u1ed9t ch\u1eef s\u1ed1 c\u1ee7a ng\u00e0y th\u1ee9 1 c\u1ed9ng v\u1edbi m\u1ed9t ch\u1eef s\u1ed1 c\u1ee7a ng\u00e0y th\u1ee9 2 v\u00e0 c\u1ed9ng v\u1edbi X sao cho k\u1ebft qu\u1ea3 b\u1eb1ng 10 ho\u1eb7c b\u1eb1ng 20.<\/p>\n\n\n\n
V\u1edbi v\u00ed d\u1ee5 tr\u00ean ta c\u00f3 3+2+X=10 ho\u1eb7c 20 ->X=5<\/p>\n\n\n\n
2+2+X = 10 ho\u1eb7c 20 -> X=6<\/p>\n\n\n\n
V\u1eady 56-65 l\u00e0 s\u1ed1 c\u1ea7n t\u00ecm \u0111\u1ec3 ch\u01a1i \u0111\u1ec1.<\/p>\n\n\n\n