giúp mình bài 1 2 4 với ạ 
----- Nội dung dịch tự động từ ảnh -----
DE F.
2
Caus: There hien phop hus
9) (2x + 3)² = (2x-3) ²
(X-5) (x+5) -(x+2)(x-3)
(72-5) ² - 7 (x + 1) (x-1)
97 x 12-y) + y (x+y)
bi
e₂
2(x+3) 43(x - 5)
Call 2. Tum x biet"
No.
Date
a) 2x (x+3) = x (2x-5) = 10; b₁ 4(x-2) - 2(x + 1) = 15
d) (2+4) ² (x-4)² = 16
6 (3x-272-25 =0
e 3 (x-2) + x² ²-4 = 0.
9)
2² - 4x + 4 = 9
f, 2x(x-200) - X + 200 = 0
h₂ x ² + 5x + (2x²²5)/(x+5)=0
%, (x-3) (x² + 2x + 3) = (x-3) (x+3) = 0 mm₁ x ²³² + 8 = 0
Call 3.
a) 2x(x + 1) + 2 (2+1)
42 ( x=-2y) +8y (24-2)
e (2x+1) ² - (x-120
97 25 (x+y)² = 16 (x + y)²
X₁ X² + x²³² + x + 1
phay dus do there than whan fis
"b₁ y ² (x²zy)-zx-zy
d) 3 x (x + 1)² + 5x²(x + 1) + 7 (x + 1)
f₁ g(x + 5)² -(x-7) ²
$7 49 (x-4)² = g(x+2)
ic, 14-13-2
2
+1
c₂, (a+b)² (a -b)²
d) 3x(x-2) + (x-1) (x+5)
$ (3x-5) (3x + 5)
hy (52-10) (22+3)-102²_
f (xx-3) (x²+3x+9)
Câu 4 Tìm x biết
a) 2² X=6=0
4x²-25=0
Cau 6: pt dffnt
a) x²_2xy + y² - 22
az - ab + b-x
b₁ 1² + 4x² = 5=0
+yz
2
2
b₁ x²-g²-x+y
2 32² - 124²
2
és x(x+1)² + x(x-5) -5 (x+1)
f, ab (a-b) + bc (b-c) + (a (C-a)