a) x - 3 = (3 - x)²

x - 3 = (x - 3)²

x - 3 - (x - 3)² = 0

(x - 3)[1 - (x - 3)] = 0

(x - 3)(1 - x + 3) = 0

(x - 3)(4 - x) = 0

x - 3 = 0 hoặc 4 - x = 0

*) x - 3 = 0

x = 3

*) 4 - x = 0

x = 4

Vậy x = 3; x = 4

b) x³ + 3/2 x² + 3/4 x + 1/8 = 1/64

(x + 1/2)³ = 1/64

(x + 1/2)³ = (1/4)³

x + 1/2 = 1/4

x = 1/4 - 1/2

x = -1/2

a) x² + 2xy + y² - x - y

= (x² + 2xy + y²) - (x + y)

= (x + y)² - (x + y)

= (x + y)(x + y + 1)

b) 2x³ + 6x² + 12x + 8

= 2(x³ + 3x² + 6x + 4)

= 2(x³ + x² + 2x² + 2x + 4x + 4)

= 2[(x³ + x²) + (2x² + 2x) + (4x + 4)]

= 2[x²(x + 1) + 2x(x + 1) + 4(x + 1)]

= 2(x + 1)(x² + 2x + 4)

One of the most devastating natural disasters that can occur is a hurricane. A hurricane is a powerful storm that forms over warm ocean waters and can cause catastrophic damage when it makes landfall. These storms are characterized by strong winds, heavy rain, storm surge, and tornadoes. The impact of a hurricane can be felt for days, if not weeks, as it can cause extensive flooding, power outages, and destruction of buildings and infrastructure. In addition to the immediate physical damage, hurricanes can also have long-term effects on the environment, including damage to ecosystems and marine life. To prepare for a hurricane, it is important to have an emergency plan in place, including a disaster kit, evacuation plan, and knowledge of local emergency protocols. During a hurricane, it is important to stay informed and follow the guidance of local authorities to ensure safety.

1. He asked the villagers how often earthquakes occurred in that region.
2. They told me that I could find a wide range of beauty products in their store.

1. I think robots can't replace the role of teachers in education.
2. People will still send letters to each other in 2050.