Ôn tập PTĐTTNT dùng hằng đẳng thức

• (x - 3y)(x^2 - 3xy + 9y^2)
• (x - 3y)^3
• (x + 3y)^3
• (x - 3y)(x^2 + 3xy + 9y^2)

• (x - 7)(x^2 + 14x + 49)
• (x + 7)(x^2 - 7x + 49)
• (x - 7)(x^2 + 7x + 49)
• (x - 7)(x^2 - 7x - 49)

• (x + 10y)(x^2 - 10xy + 100y^2)
• (x + 20y)(x^2 - 20xy + 400y^2)
• (x - 10y)(x^2 + 10xy + 100y^2)
• (x + 5y)(x^2 + 5xy + 25y^2)

• (5x + 7y)(5x + 7y)
• (25x^2 - 49y^2)
• (5x - 7y)(5x - 7y)
• (5x - 7y)(5x + 7y)

• (125x+y)^3

• 5xy(5x + y)(5x + 5y)
• (5x+y)^3

• (5x-y)^3

• (x + 3y)(x^2 - 3xy + 9y^2)

• (x - 3y)(x^2 + 3xy + 9y^2)

• (x - 3y)(x^2 - 3xy + 9y^2)

• (x + 3y)(x^2 + 3xy + 9y^2)

• (x - 4)(x + 4)(x^2 + 1)

• (x - 2)(x + 2)(x^2 + 4)

• (x^2 - 2)(x^2 + 2)

• (x^2 - 4)(x^2 + 4)

• (x - 2y)(x^2 + 2xy + 4y^2)

• (x - 2y)(x^2 - 2xy + 4y^2)

• (x + 2y)(x^2 - 2xy + 4y^2)

• (x + 2y)(x^2 + 2xy + 4y^2)

• (x - 5)(x + 5)

• (x - 10)(x + 10)

• (x + 5)(x + 5)

• (x - 1)(x + 1)

• (x^2 - 1)(x^2 + 1)

• (x - 3)(x + 3)(x^2 + 9)

• (x - 9)(x + 9)(x^2 + 1)

• (x^2 - 9)(x^2 + 9)