FACTOR to SOLVE 1. X 2 – 4x - 60 2. X 2 – 17x + 52 (x-10)(x + 6) x = 10, -6 (x-4)(x - 13) x = 4,13.

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Presentation transcript:

FACTOR to SOLVE 1. X 2 – 4x X 2 – 17x + 52 (x-10)(x + 6) x = 10, -6 (x-4)(x - 13) x = 4,13

Synthetic Division 3. (x 3 - 5x 2 - 2x + 24) (x+2) ┘ x 2 - 7x + 12

4. Find the rational zeros to graph: f(x) = x 3 – 8x 2 – 23x | x 2 – 7x - 30 (x-10)(x+3)(x-1) zeros = 10, -3, 1 at 10 graph crosses at -3 graph crosses at 1 graph crosses

5. Find the rational zeros: f(x) = x 3 – 9x x | x 2 – 7x + 10 (x-2)(x-5)(x-2 ) zeros = 2,5 (x-2) 2 (x-5) at 2 graph touches at 5 graph crosses

6. Find the rational zeros: f(x) = x 3 – x x | x 2 – 2x -15 (x+1)(x-5)(x+3 ) zeros = -1,5-3 at -1 graph crosses at 5 graph crosses at -3 graph crosses

HOMEWORK 1.x 3 - x 2 - 8x x 3 - 2x x x 3 - 6x x - 8