-
![]()
16
-1
alb-c)-(b-cib+c)
(BX
(a-dxd-exc-a)
+
bie-a) (cuaxe +a)
(a−b xb-excid)
DA-D) (@-Xa+b)
(a-bXb-exeya)
tạo tế làm và mộ gi
Tạo ở Đà
ca-bc-a²+²
(a-bxb-cxe-a)
0
(a-bxb-exc-
1
otuato
N
62 (1)
(ab)
+ab
a²
11
2 72
11
6²
(2) a'+b²m(a+b)²-2ab
-(1)-2-6-121-12-73
であるから
73
73
D +=ab
a
63 (1) 1+zy
+1+a1-a
a
=1+ a
=1+(1+aX1-a)
a
=1+1=g²
a
2
a²+(1-a²)
p.16 E
=
(2) x²-y²
(3)
3:17
合力の
T(SAC) + (57
021-42-4
+1
2
2
2
2
x+2
2(+2)(x+1)) 2(x-3)-(
(3)
(z+1xx+2)+(z-2xz
2
-2
z+1Xz+2)(z-2xz-3)
21x-2xx-3)-(z+1Xz+2))
iz +1x2+2xz-2xx-3)
21(z²-5r+6)-(x²+3x+2)
65 (1) 4x +11
z +2
(x+1Xz+2z-2x-3)
8(2-1)
"(x+1xx+2X-2(x-3)
3a-14 5a-11+4-4
a-3+
a-5
a-2
3x² + 11x +11
-(3+5)-(5-2)
(2)
a
x+2
a
+
a-3)+(
1
2x²-7x+3
1_1
a-5a-2
(a-2)+(a-5)
2x-3
a-3
a
(a-4)+
2x
(a-5xa-2)
(a-3)
=x-2-
2a-7
3
エーエーエ+15㎡~11
2a-7
(a-5xa-2) (a-3Xa-
x²+x-3
(x²+x-3)(x²-2x + 4)+5x+
(2a-7)(a-3Xa-4)-(a
(a-5Xa-2Xa-3X
22a-7)
(a-2a-3Xa-4Xa-5
=x²-2x+4+5x+1
x²+1 2x+5 ²+2
x+2
x+
1
- (x + ¹)-(2+ = + ₂)
+2
+-
1
+2-x+1+
(x+2)(x+3)-
z(x+2)
であるから
(x+1)
2
2
(x+2)(x+1)x+
2z+1Xx+3)-(r-
(2+2x+1Xx+
1²+8² +6C-XB €²+²+at-beta² +
2
CA
33
18
=
5x36 198
be-ad-c²+a²
(a-bxb-exc-a)
24
=(x+yXx-y)
(1+a)+(1-a) (1+a)=(1-a)
B
x
x-
a
a
2 2a 4
ax==
a
である。
y xy
y²-2²=-(2²-y²) = -4
a
1+a1-a.
2
1-a²
zy=
a
a
a
解答編 (第1章)
gb at y B
(a−b)(b-c)(cias
= 0
tolx
XT
Qablactb).
b+c
212
Aa
64 (1) ²+(²+1)
=1²+2=3
=a²-2
ma³-3a
(a-b)(b-c)(-a)
ED
136.
(3)
(4)
2
- 6x)
Lifter
+-2
<<-2z
*+2
-4+13
x+2
=3x+5++
42
