1. 4.3, 4.4: Solve quadratic equations by factoring
Algebra II
4.3, 4.4: Solve quadratic equations by factoring
HW: worksheet
Test : Friday, Oct. 10th

2. FOIL
1.) (x + 5)(x – 7)

3. 4. 3: Practice A: Factor the expression
4.3: Practice A: Factor the expression. If the expression cannot be factored, say so.
1.) x2 + 4x ) x2 – 6x + 8

4. 4. 3: Practice A: Factor the expression
4.3: Practice A: Factor the expression. If the expression cannot be factored, say so.
3.) x2 – 15x ) x2 – 16

5. 4. 3: Practice A: Factor the expression
4.3: Practice A: Factor the expression. If the expression cannot be factored, say so.
5.) 25x2 – ) 4x2 – 9

6. 4.3, 4.4: Solve quadratic equations by factoring
Algebra II
4.3, 4.4: Solve quadratic equations by factoring
HW: none
Test : Friday, Oct. 10th

7. 4. 4: Practice A: Factor the expression
4.4: Practice A: Factor the expression. If the expression cannot be factored, say so.
7.) 2x2 + 5x ) 5x2 + x – 4

8. 4. 4: Practice A: Factor the expression
4.4: Practice A: Factor the expression. If the expression cannot be factored, say so.
9.) 3x2 – 9x – ) 27x2 – 3

9. 4.3, 4.4: Factoring Steps Factor out a GCF first Factor two ( )
Square root trick or regular factoring.
Solving Equations:
1.) Make equation equal to zero.
2.) Factor
3.) Solve by making each factor equal to zero.

10. 4.4: Practice A: Solve the equation.
11.) 6x2 – 15x – 9 = 0

11. 4.3, 4.4: Practice A: Solve the equation.
12.) x2 – 49 = 0
13.) 12x2 = - 4x + 8

12. Practice A: Solve the equation.
14.) 2x2 – 4x – 3 = -x2 + 4x

13. Practice A: Solve the equation.
14.) 2x2 – 4x – 3 = -x2 + 4x
15.) x2 + 7x = 8