A110­3SolvingQuadEq.notebook
April 27, 2015
Algebra 1
Ch.10 Notes Page 58
P58 10­3 Solving Quadratic Equations
Sep 2­8:31 AM
Finding the Solutions (Roots or Zeros) of a Quadratic Equation
0 = ax2 + bx + c
The solutions are the x­intercepts of the equation.
There can be 0, 1, or 2 Solutions to a Quadratic Equation.
Apr 30­8:41 AM
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A110­3SolvingQuadEq.notebook
April 27, 2015
Solving by Graphing
2
y = x
2
y = x ­ 4
y = x2 + 4
Apr 30­8:41 AM
Solving by Graphing
y = x2 ­ 4
May 7­8:25 AM
2
A110­3SolvingQuadEq.notebook
April 27, 2015
Solving by Square Roots
2x2 ­ 98 = 0
3n2 + 12 = 60
2y2 ­ 32 = 0
Apr 30­8:41 AM
Solving by Square Roots
There is NO SOLUTION if you have to take the Square Root of a Negative Number.
x2 + 10 = 0
2n2 + 10 = 6
4y2 + 32 = 0
May 7­8:36 AM
3
A110­3SolvingQuadEq.notebook
April 27, 2015
HW #71
10­3 P567 #1­18
Please put your name and class period at the top of the homework.
Also include the homework number.
Nov 19­2:29 PM
Apr 21­8:42 AM
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