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10.4 NOTES Use Square Roots to Solve Quadratic Equations

10.4 NOTES Use Square Roots to Solve Quadratic Equations. Example 1 – Solve Quadratic Equations. Solve the equation. a. c 2 – 25 = 0 b. 2x 2 + 11 = 11. Example 1 Cont. Solve Quadratic Equations. Solve the equation. c. 5w 2 + 12 = -8 d. 25m 2 = 16 .

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10.4 NOTES Use Square Roots to Solve Quadratic Equations

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  1. 10.4 NOTES Use Square Roots to Solve Quadratic Equations

  2. Example 1 – Solve Quadratic Equations Solve the equation. a. c2 – 25 = 0 b. 2x2 + 11 = 11

  3. Example 1 Cont. Solve Quadratic Equations Solve the equation. c. 5w2 + 12 = -8 d. 25m2 = 16

  4. Example 2- Approximate solutions of a quadratic equation Solve the equation. Round the solutions to the nearest hundredth. • x2 + 4 = 14 b. 3k2 – 15 = 0

  5. Example 2 Cont. - Approximate solutions of a quadratic equation Solve the equation. Round the solutions to the nearest hundredth. c. 2p2 – 7 = 2 d. 4b2 = 22

  6. Example 3- Solve a Quadratic Equation(binomial squared in the equation) Solve the equation. Round the solutions to the nearest hundredth, if necessary. a. 2(x – 2)2 = 18 b. 4(n - 3)2 = 28

  7. Example 3- Solve a Quadratic Equation(binomial squared in the equation) Solve the equation. Round the solutions to the nearest hundredth, if necessary. c. 3(t + 5)2 = 24 d. 5(y + 1)2 = 25

  8. Example 4- word problems Use the given area A of the circle to find the radius r or the diameter to the nearest hundredth. • A = 144∏ in2 b. A = 34∏ ft2

  9. Example 5- Solve a Multi-Step Problem

  10. Homework 10.4 Practice B worksheet

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