FOIL Review

Front

What does FOIL stand for in algebra?

Back

FOIL stands for First, Outside, Inside, Last. It is a method used to multiply two binomials.

Front

What is the result of (3x + 1)(3x - 1)?

Back

9x² - 1

Front

How do you apply the FOIL method to (x + 5)(x - 4)?

Back

First: x*x = x²; Outside: x*(-4) = -4x; Inside: 5*x = 5x; Last: 5*(-4) = -20. Combine: x² + 1x - 20.

Front

What is the product of (4x + 3)(x + 2)?

Back

4x² + 11x + 6

Front

How do you simplify (p - 8)²?

Back

(p - 8)(p - 8) = p² - 16p + 64.

Front

What is the result of (x - 7)(x + 7)?

Back

x² - 49

Front

What is the purpose of the FOIL method?

Back

The FOIL method helps in multiplying two binomials systematically to find the product.

Front

What is the formula for the square of a binomial (a - b)²?

Back

(a - b)² = a² - 2ab + b².

Front

What is the formula for the difference of squares?

Back

a² - b² = (a - b)(a + b).

Front

How do you expand (x + a)(x + b)?

Back

x² + (a + b)x + ab.