Daily Starter
Factor (if possible)
1.
x2 + 6x + 9
2.
4x2 - 8x
3.
a2 - 4
4.
2x2 - 5x - 3
Jan 24­4:34 PM
1
Daily Starter
Factor (if possible)
1. x2 + 6x + 9
2. 4x2 - 8x
Jan 24­4:34 PM
2
Daily Starter
Factor (if possible)
3. a2 - 4
4. 2x2 - 5x - 3
Jan 24­4:34 PM
3
Section 10.4
Solving Quadratic Equations
that have been factored
x = ???
Jan 24­4:42 PM
4
Flashback
What does (2)(0) =
This is called the zero product property
Jan 24­4:43 PM
5
Given that a(0) =
If (x + 1)(x - 2) = 0
Then...
Jan 24­4:47 PM
6
We just solved x2 - x - 2 = 0
Jan 24­4:52 PM
7
Solve: (2x + 3)(x - 2) = 0
Feb 15­3:40 PM
8
Solve: 5x(x + 1)(x + 4) = 0
Jan 24­5:10 PM
9
Feb 15­9:52 AM
10
Solve: x2 + 2x - 35 = 0
Jan 24­4:53 PM
11
2
Solve: 16x - 36 = 0
Jan 24­4:53 PM
12
Homework:
Packet page 15 # 4-15
Jan 24­5:02 PM
13
Daily Starter
Solve
1.
x2 + 6x + 9 = 0
2.
a2 - 4 = 0
3.
2x2 - 5x - 3 = 0
Feb 15­3:44 PM
14
How can we solve: x2 - 5x = -4
Jan 24­4:55 PM
15
Solve: x2 + 13x = -30
Feb 15­3:49 PM
16
Solve: 6x2 + 7x = 10
Jan 24­4:53 PM
17
Solve: 16x2 = 9
Jan 24­4:53 PM
18
Solve:
1.
x2 - 12x + 36 = 0
2. 2x2 + 7x = -3
Jan 24­4:57 PM
19
Homework:
Packet page 16 #16 - 24
Feb 15­3:58 PM
20