Foil method Ch 5.5

What does FOIL stand for?

• Failing Only in Latin

• Farming Only in Lakewood

• First Outer Inner Last

• Fresh Only in Lakes

Multiply

(x - 7)(x + 7)

• x^2 + 7x - 49

• x^2 - 7x + 49

• x^2 - 49

• x^2 + 49

Multiply

(x + 5)(x + 5)

• x^2 + 25

• x^2 + 10x + 25

• x^2 + 10 x + 10

• x^2 + 10

Multiply

(y + 3)(y + 7)

• y² + 21

• y² + 10x + 21

• y² + 4y - 21

• 2y + 10

Which of the following is NOT a binomial?

• 21x²y

• 32xy - 5x

• 4x¹⁰ + 5

• 12 - x

(2x - 1)(x + 2)

• 2x² + 3x - 2

• 2x² - 5x - 2

• 2x² + 3x + 2

• 2x² - 5x + 2

(3x + 1)(3x - 1)

• 9x² + 1
• 9x² - 1
• 9x² + 6x - 1
• 9x² - 6x - 1