Factoring Quadratics Using the “X” method. Warm - up 1. (x - 7) 2 = x 2 - 14x + 49 3. (2k + 3) 2 = 4k 2 + 12k + 9 5. ( t - 6 )( t + 6 ) = t 2 - 36 2.

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Factoring Quadratics Using the “X” method

Warm - up 1. (x - 7) 2 = x x (2k + 3) 2 = 4k k ( t - 6 )( t + 6 ) = t (m + 8) 2 = m m (3z - 5) 2 = 9z k ( 5y )( 5y 2 + 2) = 25y 2 - 4

Quadratics with a leading coefficient of 1 Factors of 12 Sum of factors 1 and and and Factor x 2 + 7x + 12 (x + 3) ( x + 4)

(x + 3) ( x + 4)

1. Factor x x + 20 (x + 20) ( x + 1) Your Turn!

1. Factor x 2 - 6x + 8 (x - 4) ( x - 2)

1. Factor x 2 - x - 12 (x + 3) ( x - 4) Your Turn!

1. Factor x 2 - 9x + 20 (x - 5) ( x - 4)

1. Factor x 2 - 7x + 10 (x - 2) ( x - 5) Your Turn!

1. Factor x 2 + 2x - 15 (x - 3) ( x + 5)

1. Factor x 2 + 6x - 7 (x - 1) ( x + 7) Your Turn!

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