Class 12 Maths Algebraic Identities
Class 12 Maths Algebraic Identities
This SaralStudy page helps students revise Algebraic Identities in Class 12 Maths. It is designed as a study navigation page with definitions, revision direction, related practice ideas, and exam preparation keywords.
How to study this topic
Start with the textbook explanation, then write the main definitions, formulas, diagrams, grammar rules, or key points depending on the subject. After that, practise short questions, long-answer questions, MCQs, and previous-year style questions.
Revision Checklist
- Read the chapter or topic from your official textbook first.
- Make short notes in your own words.
- Practise solved examples and exercise questions.
- Use sample papers, MCQs, and revision tests after basic understanding is clear.
- Mark difficult terms and revise them again before exams.
Useful SaralStudy Links
Continue with MCQ practice, previous year question papers, sample papers, NCERT solutions, and education glossary for connected learning.
Related Search Keywords
Useful search phrases include class 12 maths algebraic identities, algebraic identities notes, algebraic identities questions, algebraic identities MCQ, maths revision, and board exam preparation.
Editorial Note
This page is a student-friendly study support page. Use official syllabus, school instructions, and textbook guidance for final exam preparation decisions.
Algebraic Identities: Explanation, Formulae and Practice
Algebra uses letters to represent unknown numbers. For basic algebra, focus on simplifying expressions, substituting values, and solving equations step by step by doing the same operation on both sides.
Practical Formulae
- Like terms can be added or subtracted: 3x + 2x = 5x.
- Distributive rule: a(b + c) = ab + ac.
- Equation balance rule: if a = b, then a + c = b + c and a - c = b - c.
- For ax + b = c, x = (c - b) / a, where a is not 0.
- (a + b)^2 = a^2 + 2ab + b^2.
Solved Example
Question: Solve 3x + 5 = 20.
Working: Subtract 5 from both sides: 3x = 15. Divide both sides by 3: x = 5.
Result: x = 5.
Unanswered Practice Questions
Try these yourself before checking notes or calculators.
- Simplify: 4x + 3x - 2x.
- Solve: 2x + 7 = 19.
- Expand: 3(a + 4).
- Find the value of 2x + 5 when x = 6.
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