body{margin:0;} noscript{z-index: 10000; position: fixed; display: block; height: 100%; width: 100%; background: #fff;} noscript .fa{font-size: 40px; display:block; color: #daa520;} noscript div{margin-top: 6%; padding-left: 20px; padding-right: 20px; text-align: center;} Du måste ha JavaScript påslaget för att använda den här webbsidan.

mathleaks.se

mathleaks.se

Startsida kapitel

Startsida

Historik

Historik

Community

Community

Stäng

{{ courseTrack.displayTitle }}

{{ statistics.percent }}%

Logga in för att se statistik

{{ printedBook.courseTrack.name }} {{ printedBook.name }}

Använd offline

Artikel

Lösningar till böcker

eKurser

Community

Uppgiftsblad

Math Solver

Teori

Faktorisera med kvadreringsreglerna

Uttryck på formen a2+2ab+b2 eller a2−2ab+b2 kan faktoriseras genom att använda kvadreringsreglerna "baklänges":

a^{2} + 2 a b + b^{2} = (a + b)^{2} eller a^{2} - 2 a b + b^{2} = (a - b)^{2} .

Exempelvis kan uttrycket x2−10x+25 skrivas som x2−2⋅x⋅5+52, vilket kan uttryckas som kvadraten av en differens:

x2−2⋅x⋅5+52=(x−5)2.

{{ 'ml-article-textbook-solutions-heading' | message }}

{{ 'ml-article-textbook-solutions-description' | message }}

{{ 'ml-article-textbook-solutions-cta' | message }} {{ 'ml-article-use-the-app' | message }}

{{ 'ml-article-textbook-solutions-expert-solutions' | message }}

{{ 'ml-article-textbook-solutions-math-solver-scanner' | message }}

{{ 'ml-article-textbook-solutions-answers-hints-steps' | message }}

{{ 'ml-article-ecourses-heading' | message }}

{{ 'ml-article-ecourses-description' | message }}

{{ 'ml-article-ecourses-cta' | message }} {{ 'ml-article-use-the-app' | message }}

{{ 'ml-article-ecourses-interactive' | message }}

{{ 'ml-article-ecourses-chapter-tests' | message }}

{{ 'ml-article-ecourses-exercise-levels' | message }}

{{ 'ml-article-ecourses-rank-stats' | message }}

{{ 'ml-article-ecourses-video-lessons' | message }}

{{ 'ml-article-ecourses-course-theory' | message }}

{{ 'ml-article-ecourses-join-classroom' | message }}

{{ 'ml-article-ecourses-graphing-calculator' | message }}

{{ 'ml-article-ecourses-quiz-games' | message }}

{{ 'ml-article-ecourses-study-together' | message }}

{{ 'ml-article-community-heading' | message }}

{{ 'ml-article-community-description' | message }}

{{ 'ml-article-community-cta' | message }} {{ 'ml-article-use-the-app' | message }}

{{ 'ml-article-community-create-and-share-channels' | message }}

{{ 'ml-article-community-share-content-and-challenge' | message }}

{{ 'ml-article-community-cooperate-with-friends' | message }}

{{ 'ml-article-worksheets-heading' | message }}

{{ 'ml-article-worksheets-description' | message }}

{{ 'ml-article-worksheets-cta' | message }} {{ 'ml-article-use-the-app' | message }}

{{ 'ml-article-worksheets-course1' | message }}

{{ 'ml-article-worksheets-course2' | message }}

{{ 'ml-article-worksheets-course3' | message }}

{{ 'ml-article-worksheets-course4' | message }}

{{ 'ml-article-math-solver-heading' | message }}

{{ 'ml-article-math-solver-description' | message }}

{{ 'ml-article-math-solver-cta' | message }} {{ 'ml-article-use-the-app' | message }}

{{ 'ml-article-math-solver-photo-scan-solve' | message }}

{{ 'ml-article-math-solver-step-by-step' | message }}

{{ 'ml-article-math-solver-graph-math-problem' | message }}