Factoring Trinomials with Perfect Squares

Which of the following is a perfect square trinomial?

• x² – 4x – 4 

• x² – 6x – 9 

• x² + 6x – 9 

• x² – 4x + 4 

Idtify a perfect square.

• x

• x³

• x²

• 2x

Factor: x²-26x+169

• (x+13)²

• (x-13)²

• (x+13)(x-13)

• (-x-13)²

Factor: x² + 24x + 144

• (x + 12)²

• (x + 9)²

• (x + 15)²

• (x + 13)²

Factor: x² - 4x + 4

• (x + 2)²

• (x - 2)²

• (x + 4)²

• (x - 4)²

Factor completely:

9m² + 30mn + 25n²

• (3m + 5n)²

• (3m - 5n)²

• (3m + n)²

• (m + 5n)²

81x² -90x + 25

• (9x + 5)²

• (9x - 5)²

• (9x - 45)²

• Not a Perfect Square Trinomial

Find the factors of
5x² + 20x + 20

• 5(x+2)(x+2)

• 5(x-2)(x-2)

• 5(x+2)(x-2)

• (5x+2)(x+2)

Factor completely perfect square trinomials; and solve problem involving factors of polynomials. 9a² + 24a + 16