Zero product property - PowerPoint PPT Presentation

Solving quadratic equations by graphing and factoring

Solving quadratic equations by graphing and factoring. Warm Up Find the x -intercept of each function. 1. f(x ) = –3 x + 9. 3. 2. f ( x ) = 6 x + 4. Factor each expression. 3. 3 x 2 – 12 x. 3 x ( x – 4). 4. x 2 – 9 x + 18. ( x – 6)( x – 3). 5. x 2 – 49. ( x – 7)( x + 7).

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Solving by factoring

I can use the zero product property to solve quadratics by factoring. Solving by factoring. Warm Up Use your calculator to find the x -intercept of each function . 1. f(x ) = x 2 - 6x + 8. 2. f ( x ) = -x 2 – 2x + 3. Factor each expression. 3. 3 x 2 – 12 x. 3 x ( x – 4).

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