How to solve quadratic equations
[DOC File]Module 1: Solving Quadratic Equations
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The Quadratic Formula Notes. This formula gives two possible values for x. Usually in practical situations it will be obvious which answer is the correct one, but in some contexts both answers give possible solutions. Example 1. Solve the equation . How to do it… Rearrange the equation so all terms are at one side: In this case subtract 3:
[DOC File]Factoring, Completing the Square Quiz
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Students know the quadratic formula and are familiar with its proof by completing the square. 20.0 . Students use the quadratic formula to find the roots of a second-degree polynomial and to solve quadratic equations. 21.0 . Students graph quadratic functions and know that their roots are the x- intercepts. 22.0
[DOC File]Quadratics
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Solve the quadratic equation by completing the square. 5. 6. 7. Solve the quadratic equation by using the quadratic formula. 8. 9. 10. Answer key-3,-4. 3,-7-5,3 2, 1 . Title: Factoring, Completing the Square Quiz Author: Grant Last modified by: mdailey Created Date: 2/22/2006 5:57:00 PM ...
[DOC File]Unit Plan for Chapter 9: Quadratic Equations and Functions
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(1) What is a quadratic equation? An equation that has two terms. An equation that has four terms. An equation that has degree 4. An equation that has degree 2 (2) Use the discriminant to determine how many real solutions exist for the quadratic equation 3x2 + 4x + 2 = 0. 0 solutions. 1 solution. 2 solutions. 3 solutions (3) Solve x2 + 4x ...
[DOC File]Solving Quadratic Equations
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We can solve this equation by looking for the x-values where the graph of intersects the line (i.e., the x-axis). Thus, the solution set is . SOLVING QUADRATIC EQUATIONS BY COMPLETING-THE-SQUARE. Using the square root method to solve a quadratic equation only works if we can write the quadratic equation so that one side is the square of a binomial.
[DOC File]Solving Quadratic Equations by Graphing
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Solve These Equations. x2 + 7x + 12 = 0 2x2 + 5x = 12 5x2 - 4x - 4 = 2x2 - 15x #3: The Quadratic Formula. An equation of the form _____ can always be solved by using the quadratic formula. Example #1. Solve the equation 3x2 – 4x – 5 = 0. Step #1: Identify a, b, and c. Step #2: Plug a, b, and c into the formula
[DOC File]The Quadratic Formula
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Writing Equations (Quadratic) 1. 2. Write a quadratic equation that has the following roots. Example 1 Example 2 . and 5 and . Example 3 Example 4. 7 – 2i and 7 + 2i and . Solve each equation and check using the sum and product of the roots. Example 5 . Pg 362, 5-39. Analyzing Graphs of Quadratic Functions §6.6. Quadratic Equations
[DOC File]Solving Quadratic Equations
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Completing the square is another method that is used to solve quadratic equations. This method is especially helpful when the quadratic equation cannot be solved by simply factoring. ***Remember the standard form for a quadratic equation …
[DOC File]Quadratic Functions
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E.1.a: Solve quadratic equations and inequalities using various techniques, including completing the square and using the quadratic formula. E.1.b: Use the discriminant to determine the number and type of roots for a given quadratic equation. E.1.c: Solve quadratic equations with complex number solutions.
3 Ways to Solve Quadratic Equations - wikiHow
Standard Form of Quadratic Equations: ax2 + bx + c = 0. Before you select the method that you will use to solve a quadratic, you must use inverse operations to get the equation to equal . zero (if necessary). When solving quadratic equations, we can use two methods: Factoring. Quadratic Formula. Solving Quadratic Equations Using Factoring:
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