Mathematics
Junior High
math๐ปโโ๏ธ
3โฃใฎ1ใ3ใๆใใฆใใ ใใ๐ฆ
่งฃ่ชฌใจๅ็ญใ่ผใใฆใใใพใใจๅฉใใใพใ๐โโ๏ธ๐๐ฆ
13 ใซใผใใซ่ช็ถๆฐใๆธใ, ๆธใใใฆใใๆฐใฎๅฐใใ้ ใซ,ใใใ
ใฎใซใผใใไธฆในใใ ใพใ, 11 ใฎใซใผใใไธญๅคฎใซใใ, ใใฎๅจใใซ,
1ๅจ็ฎใซใฏ2,3, 4 5 ใฎใซใผใใใ2ๅจ็ฎใซใฏ6.7.
8. โจ9 ใฎใซใผใใใ ๅณใฎๅณใฎใใใซๅทฆๅใใซไธฆในใใ 3ๅจ็ฎไปฅ
้ใๅใใใใซ4ๆใใคไธฆในใฆใใใ ใใฎใจใ,ๆฌกใฎๅๅใใซ็ญ
ใใใ
(1) 3ๅจ็ฎใซไธฆใถ4ๆใฎใซใผใใซๆธใใใฆใใๆฐใฎๅใฏใใใคใซ
ใชใใ, ๆฑใใใ
8
4
9
(2) nๅจ็ฎใซไธฆใถ4ๆใฎใซใผใใซๆธใใใฆใใๆฐใฎๅใ,nใ็จใใๆใ็ฐกๅใชๅผใง่กจใใ
6
(3) 2โฆxโฆ20ใจใใใ nๅจ็ฎใซไธฆใถ4ๆใฎใซใผใใซๆธใใใฆใใๆฐใฎๅใ, 1ๅจ็ฎใซไธฆใถ4ๆใฎใซใผใใซ
ๆธใใใฆใใๆฐใฎๅใฎๅๆฐใซใชใใใใชnใฎๅคใใในใฆๆฑใใใ
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