Tìm x, y
Bail. I Im x, 4 biet
27 2² +22+1=0
2
b2
x² - 4x + 4 = 0
d>
es
+
97
2
9x² - 6x + 1 = 0
2
X²² + 10₂2² + 25 = 0
2
X²² - 4x + 3 = 0
3
2
x³ = 6x² + 9x = 0
2
4x -4 = 0
3
1
92
h)
102
2
9) 2x² + y + ery
2
2
x² - 2xy + 24 - 44+ 4 = 0
7
1022 - 44 +13
#2 = 0
Bai 2. Chuing minty gra tai mor eta theis
sau khong plum theor già toi una biez
A = (x + 2)²³ + (x-2) ¹³ - 2x (x² +12)
ay
b₁ B = (x-1) ²³- (x + ₁)²³ + 6(x+₁)(x-1)