PTĐTTNT nhóm hạng tử

• (x^2 + 2)(y + 1)
• (x + y)(x + 2)
• (x + 2)(xy + 1)
• (xy + 2)(x + 1)

• (x - 1)(x + 3y)
• (x + 3)(x - y)
• (x - 3)(x + y)
• (x + 1)(x - 3y)

• (x - 2)(x^2 + 2xy - 1)
• (x - 2y)(x^2 + 2xy + 1)
• (x - y)(x^2 + 4y + 2)
• (x + 2y)(x^2 - 2xy + 1)

• (2x - 3y)(2x + 1)
• (4x - 9y)(x - 3)
• (2x + 3y)(2x - 3y + 1)
• (2x - 3y)(2x + 3y - 1)

• (x + 5 - y)(x + 5 + y)
• (x - 10)(x + 2 - y)
• (x - 5-y)(x + 5+y)

• (x - 5 )(x + 5 )

• (x - 4 - 5y)(x + 1 + 5y)
• (x + 2 - 5y)(x + 2 + 5y)
• (x - 2 - 5y)(x - 2 + 5y)

• (x - 2 - 2y)(x - 2 + 2y)

• (x + 1)(3y + 1)
• (3x + 1)(y + 1)

• (3x + 1)(y + 3)
• (3x + 3)(y + 1)

• (x - y)(x^2 + xy + y^2 + 1)
• (x + y)(x^2 + xy + y^2 + 2)
• (x - y)(x^2 + 2xy + y^2)
• (x + y)(x^2 - xy + y^2 - 1)

• (5x + 1)(y + 2)
• (5x - 2)(y + 1)
• (5x + 2)(y - 2)

• (5x - 1)(y - 1)

• (3x + 1)(xy - 1)
• (3x + 1)(xy + 1)

• (3x - 1)(xy + 1)
• (x + 1)(3xy + 3)