{"id":18053,"date":"2024-04-22T19:01:13","date_gmt":"2024-04-22T19:01:13","guid":{"rendered":"https:\/\/soicau4048.minhngocxoso.com\/?p=18053"},"modified":"2024-04-22T19:01:13","modified_gmt":"2024-04-22T19:01:13","slug":"soi-cau-de-bang-phuong-phap-3-cay","status":"publish","type":"post","link":"https:\/\/devipmb.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 ad 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
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