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Pennsylvania State University
Sara M.
Algebra
8 months, 2 weeks ago
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Related Question
In each of the following, solve the given quadratic equation exactly using the quadratic formula. Write the solutions in its simplest form. Using a calculator, determine all irrational solutions to the nearest thousandth. $$12 x^{2}-7 x=12$$
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JM
Jonathan M.
April 29, 2022
2x^2-90=0
JM
Jonathan M.
April 29, 2022
Video Transcript
first a sub tract trail from both sides of the secret and it becomes 12 X squared minus seven years minus 12. Vehicle zero. Then we can identify the confessions of this career. A equals 12 because minor 7th and say equals miners trip. Next we substitute A B. And C. With their values. Into this form. The denominator is two times 12 And the numerator is seven plus on minors. The square road of minor seven squared -4 times 12 times -12, Which equals seven plus miners The square root of 625 or 24 what she calls seven plus miners 25/24. So the first solution is 4th, 3rd, 2nd Solutions, miners 3/4
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Page history last edited by Tammy Carter 1 year, 7 months ago
Algebra 8 Unit 8 – Polynomial and Quadratic Equations: 12 Lessons
Lesson # & Date in Which it Occurs | Lesson Name & Homework Assignment | Learning Objectives | Answer Keys |
Lesson 1 – AU8 4/19 M | Solving Quadratic Equations by factoring (AU8 - Lesson 1 notes - factoring.docx) AU8L#1 Video | Factor quadratics to reveal zeroes to solve quadratic equations. | AU8 - 1 notes answers.pdf |
Lesson 2 4/20 T | Solving Quadratic Equations by factoring (a≠1) (AU8 - Lesson 2 notes - factoring complex.docx) AU8L#2 Video | Factor quadratics to reveal zeroes to solve quadratic equations. | AU8 - 2 notes answers.pdf |
Lesson 3 4/21 W | HW: Worksheet #1 HW: Worksheet #2 (AU8 - Lesson 1 hw - factoring.docx) (AU8 - Lesson 2 hw - factoring complex.docx ) | AU8 - 1 hw answers.pdf AU8 - 2 hw answers.pdf | |
Lesson 4 4/22 Th | Solving Quadratic Equations by square rooting with completing the square intro (AU8 - Lesson 3 notes - square rooting.docx) AU8L#3 Video | Complete the square of a quadratic to solve the equation. | AU8 - 3 notes answers.pdf |
Lesson 5 4/23 F | HW: Worksheet #3 (AU8 - Lesson 3 hw - square rooting.docx) | AU8 - 3 hw answers.pdf | |
Lesson 6 4/26 M | Solving Quadratic Equations by Completing the Square (AU8 - Lesson 4 notes - completing the square.docx) AU8L#4 Video | Complete the square of a quadratic to solve the equation. | AU8 - 4 notes answers.pdf |
Lesson 7 4/27 T | HW: Worksheet #4 (AU8 - Lesson 4 hw - completing the square.docx) Quiz #1 | AU8 - 4 hw answers.pdf | |
Lesson 8 4/28 W | Solving Quadratic Equations by Quadratic Formula (AU8 - Lesson 5 notes - quadratic formula.docx) AU8L#5 Video | Solve quadratic equations using the quadratic formula. | AU8 - 5 notes answers.pdf |
Lesson 9 4/29 Th | HW: Worksheet #5 (AU8 - Lesson 5 hw - quadratic formula.docx) | AU8 - 5 hw answers.pdf | |
Lesson 10 4/30 F | Review (AU8 - Lesson 7 review.docx) | Assess the prior unit objectives. | AU8 - 7 review answers.pdf |
Lesson 11 5/3 M | Mixed Practice (AU8 - Lesson 6 notes-hw - mixed practice.docx) | Asses the prior learning objectives | AU8 - 6 notes-hw answers.pdf |
Lesson 12 5/4 T | TEST | Asses the prior learning objectives |
Lesson # & Date in Which it Occurs | Lesson Name & Homework Assignment | Learning Objectives | Answer Keys |
Lesson 1 – U8 3/27 (Day 2) & 3/30 (Day 3): | Solving Quadratic Equations by factoring (AU8 - Lesson 1 notes - factoring.docx) HW: Worksheet #1 (AU8 - Lesson 1 hw - factoring.docx) | Factor quadratics to reveal zeroes to solve quadratic equations. U8Notes 1.wmv | AU8 - 1 notes answers.pdf AU8 - 1 hw answers.pdf |
Lesson 2 3/31 (Day 1) & 4/1 (Day 2): | Solving Quadratic Equations by factoring (a≠1) (AU8 - Lesson 2 notes - factoring complex.docx) HW: Worksheet #2 (AU8 - Lesson 2 hw - factoring complex.docx ) | Factor quadratics to reveal zeroes to solve quadratic equations. U8Notes 2.wmv | AU8 - 2 notes answers.pdf AU8 - 2 hw answers.pdf |
Lesson 3 4/1 (Day 2) & 4/2 (Day 3): | Solving Quadratic Equations by square rooting with completing the square intro (AU8 - Lesson 3 notes - square rooting.docx) HW: Worksheet #3 (AU8 - Lesson 3 hw - square rooting.docx) | Complete the square of a quadratic to solve the equation. U8Notes 3.wmv | AU8 - 3 notes answers.pdf AU8 - 3 hw answers.pdf |
Lesson 4 4/3 (Day 1) & 4/13 (Day 2): Spring Break: 4/6 – 4/10 | Solving Quadratic Equations by Completing the Square (AU8 - Lesson 4 notes - completing the square.docx) HW: Worksheet #4 (AU8 - Lesson 4 hw - completing the square.docx) | Complete the square of a quadratic to solve the equation. U8Notes 4.wmv | AU8 - 4 notes answers.pdf AU8 - 4 hw answers.pdf |
Lesson 5 4/13 (Day 2) & 4/14 (Day 3): | Quiz #1 Solving Quadratic Equations by Quadratic Formula (AU8 - Lesson 5 notes - quadratic formula.docx) HW: Worksheet #5 (AU8 - Lesson 5 hw - quadratic formula.docx) | Solve quadratic equations using the quadratic formula. U8Notes 5.wmv | AU8 - 5 notes answers.pdf AU8 - 5 hw answers.pdf |
Lesson 6 4/15 (Day 1) & 4/16 (Day 2): | Mixed Practice (AU8 - Lesson 6 notes-hw - mixed practice.docx) HW: Worksheet #6 | Assess the prior unit objectives. | AU8 - 6 notes-hw answers.pdf |
Lesson 7 4/16 (Day 2) & 4/17 (Day 3): | Review (AU8 - Lesson 7 review.docx) HW: Study for Unit Test | Asses the prior learning objectives | AU8 - 7 review answers.pdf |
Lesson 8 4/20 (Day 1) & 4/21 (Day 2): | TEST DLAU8.docx HW: End of Unit Review (AU8 - End of Unit Homework.docx) | Asses the prior learning objectives | AU8 - end of unit hw answers.pdf |
ELA Testing occurs during this unit, may need the extra day depending on scheduling | |||
Pop Notebook Review Quiz |
Algebra To Go pages: 53-59, 239-249
Module: 1
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