Transcription of LESSON Reteach 5-3 Solving Quadratic Equations by …
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LESSON Reteach 5-3 Solving Quadratic Equations by …
Name Date ClassReteachSolving Quadratic Equations by Graphing and Factoring5-3 LESSONS olve the equation a x 2 bx c 0 to find the roots of the the roots of x 2 2x 15 0 to find the zeros of f x x 2 2x 15. x 2 2x 15 0 x 5 x 3 0 x 5 0 or x 3 0x 5 or x 3To check the roots, substitute each root into the original equation:Equation: x 2 2x 15 0 x 2 2x 15 0 Root: x 5 x 3 Check: 5 2 2 5 15 3 2 2 3 15 25 10 15 0
Reteach 5-3 Solving Quadratic Equations by Graphing and Factoring LESSON Solve the equation a x 2 bx c 0 to find the roots of the equation. Find the roots of x 2 2x 15 0 to find the zeros of f x x 2 2x 15. x 2 2x 15 0 x 5 x 3 0 x 5 0 or x 3 0 x 5 or x 3 To check the roots, substitute each …
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