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9.8 Solving Equations by Factoring

9.8 Solving Equations by Factoring. Objectives: Find the zeros of a function. Solve equations by factoring. Standard Addressed: 2.8.11.N. Solve quadratic equations. Ex. 2 Find the zeros of the polynomial function y = . (x + 9) (x + 2) x + 9 = 0 x = -9 x + 2 = 0 x = -2. Ex. 3a .

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9.8 Solving Equations by Factoring

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  1. 9.8 Solving Equations by Factoring Objectives: Find the zeros of a function. Solve equations by factoring. Standard Addressed: 2.8.11.N. Solve quadratic equations.

  2. Ex. 2 Find the zeros of the polynomial function y = • (x + 9) (x + 2) • x + 9 = 0 x = -9 x + 2 = 0 x = -2

  3. Ex. 3a

  4. b. Solve by factoring:-10x2 + 100x = 0. • -10x (x – 10) • X = 0 • X – 10 = 0 x = 10

  5. Ex. 4

  6. Ex. 5 Solve by factoring: • A. • X = 6, -2 • B. • X = 6, -6 • C. • X = -4, -4

  7. D. • X = -5, -1 • E. • X = -1/3, 1/3 • F. • X = -1/2 , 1/2

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