Mathematics
Junior High
Resolved
๐ฉใโใซใใๅ ดๅใฏ้ไธญ่จ็ฎใฏใฉใใชใใพใใ๏ผ
ๅ ๆฐๅ่งฃ
831 53 (1) 3xยฒ-24-2yยฒ+6x-4 +3
3x426) x-(2yยฒ+y-3)
324-6)-(1-1) (27+3)
=
1.-13-2
2 x 37 3
1
y-134-3
X
3ยฒ 27 +3 โ 24 + 3
2-31
(2) 2xยฒ+8ax+6xยฒ-x+ฮฑ-1
3(y-1)(23)=y+6)
3 (y-1) (24+3) -(4-6)
-23-1
(2x-3)(27
53 (1) 3x2-xy-2y2+6x-y+3
=3xยฒ+(-y+6)x-(2yยฒ+y-3)
=3z2+(-y+6)รฆ-(y-1)(2y+3) ] ใใใใง
=(x-(y-1)(3x+(2y+3))
=(x-y+1)(3x+2y+3)
-(y-1)
3
X
2y +3
3
-(y-1)(2y+3).
(2) 2xยฒ+8ax+6aยฒ = x + 1
-3y+3
2y +3
-y+6
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