X\u1ec9u ch\u1ee7 l\u00e0 g\u00ec? B\u00ed k\u00edp \u0111\u00e1nh x\u1ec9u ch\u1ee7 n\u00e2ng cao t\u1ef7 l\u1ec7 th\u1eafng<\/strong> l\u00e0 \u0111i\u1ec1u m\u00e0 m\u1ecdi ng\u01b0\u1eddi ch\u01a1i l\u00f4 \u0111\u1ec1 lu\u00f4n quan t\u00e2m. Tuy s\u00e1c xu\u1ea5t tr\u00fang kh\u00f4ng ph\u1ea3i d\u1ec5 nh\u01b0ng do t\u1ef7 l\u1ec7 \u0103n r\u1ea5t cao n\u00ean kh\u00f4ng c\u00f3 g\u00ec kh\u00f3 hi\u1ec3u khi m\u00e0 x\u1ec9u ch\u1ee7 r\u1ea5t thu h\u00fat ng\u01b0\u1eddi ch\u01a1i. \u1ede b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang t\u00f4i xin gi\u1edbi thi\u1ec7u v\u1edbi b\u1ea1n v\u1ec1 kh\u00e1i ni\u1ec7m l\u00f4 \u0111\u1ec1 x\u1ec9u ch\u1ee7 c\u00f9ng c\u00e1ch \u0111\u00e1nh hi\u1ec7u qu\u1ea3 nh\u1ea5t.<\/p>\n <\/p>\n X\u1ec9u ch\u1ee7 l\u00e0 c\u00e1ch g\u1ecdi kh\u00e1c c\u1ee7a l\u00f4 \u0111\u1ec1 ba c\u00e0ng. N\u1ebfu nh\u01b0 3 c\u00e0ng l\u00e0 c\u00e1ch g\u1ecdi c\u1ee7a mi\u1ec1n B\u1eafc th\u00ec x\u1ec9u ch\u1ee7 l\u00e0 c\u00e1ch g\u1ecdi c\u1ee7a mi\u1ec1n Nam. \u1ede m\u1ed7i v\u00f9ng mi\u1ec1n hay m\u1ed7i nh\u00e0 c\u00e1i th\u00ec t\u1ef7 l\u1ec7 \u0103n c\u1ee7a x\u1ec9u ch\u1ee7 c\u00f3 ph\u1ea7n kh\u00e1c nhau. Trong khu\u00f4n kh\u1ed5 b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang t\u00f4i ch\u1ec9 nh\u1eafc \u0111\u1ebfn t\u1ef7 l\u1ec7 c\u01b0\u1ee3c ph\u1ed5 bi\u1ebfn nh\u1ea5t.<\/p>\n X\u1ec9u ch\u1ee7 l\u00e0 h\u00ecnh th\u1ee9c \u0111\u00e1nh l\u00f4 \u0111\u1ec1 c\u00f3 t\u1ef7 l\u1ec7 \u0103n t\u1ef1 nhi\u00ean kh\u00f4ng cao, tuy v\u1eady n\u1ebfu \u00e1p d\u1ee5ng \u0111\u00fang c\u00e1ch th\u00ec b\u1ea1n ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 gi\u00e0nh chi\u1ebfn th\u1eafng b\u1ea5t ng\u1edd. Theo kinh nghi\u1ec7m th\u00ec \u0111\u00e1nh x\u1ec9u ch\u1ee7 theo b\u00f3ng c\u1ee7a t\u1ed5ng l\u00e0 ph\u01b0\u01a1ng ph\u00e1p mang l\u1ea1i hi\u1ec7u qu\u1ea3 kh\u00e1 t\u1ed1t. Theo c\u00e1ch \u0111\u00e1nh n\u00e0y th\u00ec b\u1ea1n t\u00ednh t\u1ed5ng c\u1ee7a b\u1ea1ch th\u1ee7 l\u00f4 \u0111\u1ec1 h\u00f4m \u0111\u00f3, t\u00ecm ra b\u00f3ng s\u1ed1 c\u1ee7a t\u1ed5ng, gh\u00e9p v\u1edbi b\u1ea1ch th\u1ee7 \u0111\u1ec1 v\u1ec1 t\u1ea1o n\u00ean d\u00e0n x\u1ec9u ch\u1ee7 \u0111\u1ec3 \u0111\u00e1nh h\u00f4m sau. N\u00f3i t\u00f3m l\u1ea1i, x\u1ec9u ch\u1ee7 ch\u1ec9 l\u00e0 c\u00e1ch g\u1ecdi kh\u00e1c c\u1ee7a l\u00f4 \u0111\u1ec1 3 c\u00e0ng m\u00e0 c\u00f3 th\u1ec3 b\u1ea1n \u0111\u00e3 t\u1eebng bi\u1ebft tr\u01b0\u1edbc \u0111\u00e2y. Tuy nhi\u00ean n\u1ebfu kh\u00f4ng bi\u1ebft th\u00eam thu\u1eadt ng\u1eef th\u1ee9 hai n\u00e0y th\u00ec c\u00f3 th\u1ec3 b\u1ea1n s\u1ebd l\u00fang t\u00fang khi nghe ng\u01b0\u1eddi kh\u00e1c nh\u1eafc \u0111\u1ebfn. Hy v\u1ecdng sau b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n \u0111\u00e3 n\u1eafm ch\u1eafc h\u01a1n v\u1ec1 t\u1ef7 l\u1ec7 c\u01b0\u1ee3c c\u1ee7a t\u1eebng lo\u1ea1i x\u1ec9u ch\u1ee7 kh\u00e1c nhau. \u0110\u1eb7c bi\u1ec7t, soicaubiz ch\u00fac b\u1ea1n \u00e1p d\u1ee5ng th\u00e0nh c\u00f4ng ph\u01b0\u01a1ng ph\u00e1p \u0111\u00e1nh x\u1ec9u ch\u1ee7 \u0111\u00e3 n\u00f3i \u1edf tr\u00ean.<\/p>\n<\/div>\nX\u1ec9u ch\u1ee7 l\u00e0 g\u00ec?<\/strong><\/span><\/h3>\n
\nKhi \u0111\u00e1nh l\u00f4 \u0111\u1ec1 x\u1ec9u ch\u1ee7, ng\u01b0\u1eddi ch\u01a1i ch\u1ecdn 3 s\u1ed1 cu\u1ed1i \u0111\u1ec3 \u0111\u00e1nh theo c\u00e1c gi\u1ea3i trong b\u1ea3ng x\u1ed5 s\u1ed1 h\u00e0ng ng\u00e0y.
\nV\u1eady, c\u00f3 nh\u1eefng lo\u1ea1i l\u00f4 \u0111\u1ec1 x\u1ec9u ch\u1ee7 n\u00e0o \u0111ang \u0111\u01b0\u1ee3c ch\u01a1i nhi\u1ec1u hi\u1ec7n nay?<\/p>\nC\u00e1c lo\u1ea1i x\u1ec9u ch\u1ee7 hi\u1ec7n nay<\/strong><\/span><\/h3>\n
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X\u1ec9u ch\u1ee7 \u0103n bao nhi\u00eau?<\/strong><\/span><\/h3>\n
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C\u00e1ch \u0111\u00e1nh x\u1ec9u ch\u1ee7 ch\u1eafc \u0103n nh\u1ea5t<\/strong><\/span><\/h3>\n
\nTa c\u00f3:<\/p>\n\n
\nN\u1ebfu nh\u01b0 t\u1ed5ng l\u1edbn h\u01a1n 10, b\u1ea1n c\u1ed9ng 2 s\u1ed1 l\u1ea1i v\u00e0 l\u1ea5y s\u1ed1 cu\u1ed1i c\u1ee7a t\u1ed5ng. V\u00ed d\u1ee5: t\u1ed5ng c\u1ee7a 76 l\u00e0 13, ta ch\u1ec9 l\u1ea5y 3 v\u00e0 b\u1ecf \u0111i h\u00e0ng ch\u1ee5c.
\n*<\/strong> L\u1ea5y m\u1ed9t v\u00ed d\u1ee5 c\u1ee5 th\u1ec3 \u0111\u1ec3 b\u1ea1n hi\u1ec3u h\u01a1n v\u1ec1 ph\u01b0\u01a1ng ph\u00e1p n\u00e0y:
\nN\u1ebfu \u0111\u1ec1 v\u1ec1 81 th\u00ec t\u1ed5ng \u0111\u1ec1 l\u00e0 9. B\u00f3ng c\u1ee7a 9 l\u00e0 2 v\u00e0 4 => Gh\u00e9p c\u00e1c con s\u1ed1 n\u00e0y l\u1ea1i, ta c\u00f3 c\u00e1c x\u1ec9u ch\u1ee7 c\u1ea7n \u0111\u00e1nh l\u00e0 981, 281 v\u00e0 481.<\/p>\nL\u01b0u \u00fd:<\/span><\/h4>\n
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