Factoring special cases & Perfect Squares

Front

Factor: x² - 400

Back

(x - 20)(x + 20)

Front

Factor: x² + 18x + 81

Back

(x + 9)²

Front

Factor: 25x² - 100y²

Back

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

Front

What is ALWAYS the first step when factoring?

Back

Look for the GCF

Front

Which of the following trinomials is a perfect square trinomial? 9a² - 12a + 4

Back

Yes, it is a perfect square trinomial.

Front

Define a perfect square trinomial.

Back

A trinomial that can be expressed as the square of a binomial.

Front

What is the formula for the difference of squares?

Back

a² - b² = (a - b)(a + b)

Front

Factor: x² - 16

Back

(x - 4)(x + 4)

Front

What is the GCF of 12x² and 8x?

Back

4x

Front

Factor: x² + 10x + 25

Back

(x + 5)²