Class 9 Maths: Algebraic Identities Formulas (PDF) — All Important Formulas Free
Free class 9 maths: algebraic identities formulas — all 6 key formulas on one page, downloadable as PDF for fast revision before CBSE board exams. No signup.
TL;DR: Free class 9 maths: algebraic identities formulas — all 6 key formulas on one page, downloadable as PDF for fast revision before CBSE board exams. No…
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All Algebraic Identities formulas for Class 9 Maths (CBSE / NCERT) on one page — fast revision for board exams. 100% free, no login, download as PDF.
Algebraic Identities — Key Formulas
| Formula | Expression |
|---|---|
| Square of a sum/difference | (a + b)² = a² + 2ab + b² · (a − b)² = a² − 2ab + b² |
| Difference of squares | a² − b² = (a + b)(a − b) |
| Square of three terms | (a + b + c)² = a² + b² + c² + 2ab + 2bc + 2ca |
| Cubes | (a + b)³ = a³ + b³ + 3ab(a + b) · (a − b)³ = a³ − b³ − 3ab(a − b) |
| Sum & difference of cubes | a³ + b³ = (a + b)(a² − ab + b²) · a³ − b³ = (a − b)(a² + ab + b²) |
| Special identity | a³ + b³ + c³ − 3abc = (a + b + c)(a² + b² + c² − ab − bc − ca) |
FAQs
What are the most important Algebraic Identities formulas for Class 9?
This sheet lists all 6 key Algebraic Identities formulas from the Class 9 Maths CBSE/NCERT syllabus, ready for quick revision.
Is this Algebraic Identities formula sheet free to download?
Yes — every Syllab.in formula sheet is 100% free, needs no login, and can be saved as a PDF.