12-4-24 Bell Work: Factor the difference of two squares

Front

Factor: 5x² - 45

Back

5(x - 3)(x + 3)

Front

Factor: x² - 100

Back

(x - 10)(x + 10)

Front

Factor: x² - 25

Back

(x + 5)(x - 5)

Front

Factor: m² + 49

Back

Can't factor using Diff. of Squares

Front

Factor: 3x² - 75

Back

3(x + 5)(x - 5)

Front

Definition: Difference of Squares

Back

A² - B² = (A - B)(A + B) where A and B are any expressions.

Front

Example of Difference of Squares: 16 - x²

Back

(4 - x)(4 + x)

Front

Identify: What is the first step in factoring 5x² - 45?

Back

Factor out the greatest common factor (GCF), which is 5.

Front

Explain: Why can't m² + 49 be factored using the difference of squares?

Back

It is a sum of squares, not a difference.

Front

Factor: 2x² - 18

Back

2(x - 3)(x + 3)