Mathematics
Junior High
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合っているか分かりません( ˘•ω•˘ ).。oஇお願いしますm(_ _)m
530
48
10
0
20%
(5) 28-16ata? (-14+a)(-21a)
(6) -2ェー3+z? - (-3
ー14
a
-2a
ズ ス
-14a
ー16a
a
3x
ース
次の式を因数分解しなさい。
(1) 4-12.ェー40 = (2x+4)(ファー-10)
To20x
(2) -3az+6ax-3a
2x
2x
3a(-x12x-)
12x
M
M
(4) a(エ+y)-3(エty)
Ma -3M
#(ズー1)
EM(a-3)= (x+ョ)(C
M
M
M
(5)(a+b)-4(a+bり+4
M-4M +4 (m-2)
M
-2 -2M
-2 --2M
-4M
M
M
(7) 2a(6-9)4-6
2d M+ M
M(20+1)
(bーサ)(20+1)
Nol
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