Perfect Square Trinomials

Form for Perfect Square Trinomials: a 2 + 2ab + b 2 OR a 2 – 2ab + b 2

When factoring: If the first term and last term are Perfect Squares, check for a perfect square Trinomial

When factoring: If the first term and last term are Perfect Squares, check for a perfect square Trinomial a 2 + 2ab + b 2 = (a + b) 2 Or a 2 – 2ab + b 2 = (a – b) 2

Example 1: x 2 + 6x + 9

Example 2: x x + 64

Practice 1: x x + 100

Factoring Trinomials with a Leading Coefficient

ax 2 + bx + c If a ≠ 1, then: 1.Create a list of factors for a and c

ax 2 + bx + c If a ≠ 1, then: 1.Create a list of factors for a and c 2.Find a combination of the factors of a and c that add up to b

ax 2 + bx + c If a ≠ 1, then: 1.Create a list of factors for a and c 2.Find a combination of the factors of a and c that add up to b 3.Write the binomials

Example 1: 3x x + 6

Example 2: 8x 2 – 10x – 3

Example 3: 16x 2 – 16x + 4

Practice 1: 5x x + 7

Practice 2: 6x 2 – 29x – 5

Practice 3: 12x x + 13