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6 Solving by Factoring.notebook March 23, 2015
Solving Quadratic Equations by FactoringSolving Quadratic Equations by FactoringAgendaAgenda
RemindersReminders
Warm-Up (Monday)Warm-Up (Monday)Solve the following equation.1.
2.
Warm-Up
Notes (Flip Book)
HW: Practice #1-13
Quiz Friday
EOC Simulation Tues 3/31
3x = 0
If ab = 0, what do you know about either a or b?

6 Solving by Factoring.notebook March 23, 2015
Solving Quadratic Equations Flip BookSolving Quadratic Equations Flip BookThis flip book contains your notes for the next 4
days. We will make a pocket to keep it in.
Solving
Quadratic
Equations...
By Factoring
By Quadratic Formula
By Square Roots
The green sheet goes on the outside. Match your tabs so it looks like the right. You may have to flip your paper(s). Glue or staple the 2 pages together along the
spine.

6 Solving by Factoring.notebook March 23, 2015
Solving Quadratic Equations by FactoringSolving Quadratic Equations by Factoring
**See unit 8 for more factoring help**Steps to Solve by Factoring:
1. Solve for y (and plug in y = 0)
2. Factor (don’t forget the GCF!)
3. Set each factor each to zero and solve
Remember: Solutions are also called x-intercepts, roots, or zeroes.2. 3. 4.
Given the roots of the function, find the equation.
5. 6.
Zero Product Property

6 Solving by Factoring.notebook March 23, 2015
HW: Practice #1-13, NO WORK, NO CREDIT, NO KIDDING!!!

6 Solving by Factoring.notebook March 23, 2015

6 Solving by Factoring.notebook March 23, 2015
Solving by Factoring HW HelpNo WORK, No CREDIT, No KIDDING!!
Solving by Factoring HW Help1. This quadratic is already factored. Set each factor equal to zero and solve for x!2. Should factor to (2x - 3)(2x - 3)...there is only one solution!3. Move everything over before trying to factor!4. Should factor to (4x - 1)(3x + 1)5. Factoring help: Think about what two numbers MULTIPLY to -15 and ADD to 2. 6. You can divide each term by 2 once you solve for 0. Factor what's left over!7 & 8. Remember, these problems work BACKWARDS! Set x = to both the roots, then solve for zero. Multiply these 2 factors together using the box!9. Your FACTORS will always have opposite signs than the x-intercepts. So if your x-intercept is 1, your factor would be (x - 1)10 is a test question...just kidding :)11. Distribute w to the parenthesis and subtract 252 from both sides. The factors of -252 that add to -9 are 12 and -21. Once you solve for w, remember that you can't have a negative width!12. Factor out a negative 2. Your answer should be 1 second.13. Area = length x width. Your quadratic should be w2 + 3w - 70 = 0. Factor, solve, and don't forget to also find the length!
Need extra pointers? Come to tutorials!!

6 Solving by Factoring.notebook March 23, 2015