solving trinomial equations
TRANSCRIPT
x2 + 5x + 6 = 0
x2 + 5x + 6
x2
x
x x
x
x
1
1
1
1
1
1
= 0
= 0
x2 + 5x + 6
x2
x
x x
x
x
1
1
1
1
1
1
(x + 2)(x + 3)
= 0
= 0
= 0
x2 + 5x + 6
x2
x
x x
x
x
1
1
1
1
1
1
(x + 2)(x + 3)
= 0
= 0
= 0
x2 + 5x + 6
x2
x
x x
x
x
1
1
1
1
1
1
(x + 2)(x + 3)
= 0
= 0
= 0
ALLTHE
SAME
x2 + 5x + 6
x2
x
x x
x
x
1
1
1
1
1
1
(x + 2)(x + 3)
= 0
= 0
= 0
(x + 2)(x + 3)= 0
(x + 2)(x + 3)= 0
(x + 2)(x + 3)= 0
= 0•What two numbers multiply to equal zero?
(x + 2)(x + 3)= 0
= 0•What two numbers multiply to equal zero?
-------zero and any number-------
(x + 2)(x + 3)= 0
= 0•What two numbers multiply to equal zero?
-------zero and any number-------
(x + 2)=0 or (x + 3)=0
(x + 2)(x + 3)= 0
= 0•What two numbers multiply to equal zero?
-------zero and any number-------
(x + 2)=0 or (x + 3)=0x = -2 or -3
1
2
3
4
x2 + 5x + 6 = 0
SUM
MA
RY
1
2
3
4
x2 + 5x + 6 = 0
x2
x
x x
x
x
1
1
1
1
1
1
(x + 2)(x + 3)= 0 SUM
MA
RY
1
2
3
4
x2 + 5x + 6 = 0
x2
x
x x
x
x
1
1
1
1
1
1
(x + 2)(x + 3)= 0x = -2 or -3
SUM
MA
RY
You
Try
ON
E
0 = x2 + 7x + 6
1. Draw as Algebra Tiles2. Convert to Binomial Multiplication3. Find x
0 = x2 + 7x + 6
x2
x
x
x
x
1
1
1
1
1
1
x
x
x
x +
6
x + 1(x + 1)(x + 6)=0
(x + 1)=0or
(x + 6)=0
x = -1 or -6
ANSWER
Independent Questions
Answer in the Google FormFind x
1. x - 4 = 0
Next Page
2. x + 9 = 0
3. x + 11 = 0
Draw Algebra Tiles to Find x
4. (x + 4)(x - 5) = 0
Next Page
5. (x + 9)(x - 3) = 0
6. (x + 11)(x - 1) = 0
7. What are the 4 steps for solving a trinomial
equation?
Draw Algebra Tiles to Find x
8. x2 + 3x + 2 = 0
9. x2 + 4x + 4 = 0
Next Page
Draw Algebra Tiles to Find x
10. x2 - 3x + 2 = 0
11. x2 - 4x - 12 = 0
Next Page