Mathematics
Senior High
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J
[84] 2 ๆฌกๆน็จๅผ *? ไธใใข |]*+ใใค ]=0 ใฎ่งฃใฏ ไธ1ๅ22 ใงใใใ
ใ ใช
ใพใ, 2 ๆฌกๆน็จๅผ 3ใใผใฉใณz+ใใจใณ=0 ใฎ่งฃใฏ 52 ใงใใใ
Answers
่งฃใจไฟๆฐใจใฎ้ขไฟใไฝฟใใพใใ
ax^2๏ผbx๏ผc๏ผ0ใจใใไบๆฌกๆน็จๅผใใใฃใฆใใใฎ2่งฃใฮฑ,ฮฒใจใใๆ
ฮฑ๏ผฮฒ๏ผ-b/aใฮฑฮฒ๏ผc/a
ใซใชใใใฃใฆใใๆง่ณชใงใใญใ
ใใใฐใใฏใ
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