Mathematics
Senior High
Solved
黒い丸がついているところの解き方書いて欲しいです
Exercise
次の式を因数分解しなさい。
(1) (a-3b) c+ (a-3b) d
(4) (3x-y)² +2(3x-y)-15
(7) 3(a-b)²-5(α-b) -2
(13) a (x+y)-bx-by
(16) (a+26) ²-4
(2) (a+1)x-(a+1)
(x²+4x)² −2 (x²+4x) -15 (11) (x²+x)² −8(x²+x) +12
(19) x¹-81
(5) (x-2)²-3(x-2)-18
(8) 2(x+y)² = (x+y)z-15z²
(14) x(a-2b)-a+2b
²-(y-2)²
(20) x¹-13x²+36
41
GU misli
(3) 2x (x-3y) +y (3y-x)
+6+
(a+2)²-5(a+2)+6
(9) 2(x+1)²(x+1) −1
(12) 2(x²+4)²-3(x²+4) — 2
(15) x(y+2)+2y+4
(18) 9a²-4(b+c)²
pa²-4
(21) x²-64x²
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