Day 7 Solving Quadratic Equations.notebook
1
September 17, 2018
Jul 149:06 AM
Unit 1 Day 7Solving Quadratic Equations
To Solve a Quadratic Using Factoring:1) Put the quadratic equation into standard form (above).2) Factor the quadratic expression.3) Set each factor equal to zero.4) Solve each equation.
Standard Form of Quadratic Equations: ax2 + bx + c = 0
For example: x2 + 4x = 5
Day 7 Solving Quadratic Equations.notebook
2
September 17, 2018
Sep 132:35 PM
r2 – 12r + 35 = 0 x2 – 49 = 0
3x2 – 12 = 0 d2 – 2d = 0s2 – s = 0
Solve each of the following:
Day 7 Solving Quadratic Equations.notebook
3
September 17, 2018
Sep 132:39 PM
30 + x = x2
2x2 – x = 15
x2 + 3x – 4 = 50
Usually, problems that use slip and slide, give a fraction answer
Day 7 Solving Quadratic Equations.notebook
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September 17, 2018
Nov 28:21 AM
#14, 9, 11, 12,14, 1618