Original revision introduction and starter practice. Full learning texts are available through the publisher links below. This guide is not a CBSE-issued solution manual.
Revision introduction
A polynomial has non-negative integer exponents of its variable. Its degree is the largest exponent with a non-zero coefficient. To find p(a), substitute a in every term. A zero of p(x) is a value for which p(x)=0. Identities hold for all allowed values; equations hold only at their solutions.
Curriculum navigation
Number System
Introduction to Polynomials
Sequences and Progressions
Exploring Algebraic Identities
Linear Equations in Two Variables
Coordinate Geometry
Introduction to Euclid’s Geometry
Lines and Angles
Triangles – Congruence Theorems
4-gons (Quadrilaterals)
Circles
Area and Perimeter
Surface Area and Volume
Statistics
Introduction to Probability
Consult the current official syllabus for examinable sections, project-only content, practicals, prescribed texts and exclusions. A unit index does not override those boundaries.
Original practice
What is p(2) for p(x)=x²−3x+2?
0
2
4
8
Worked answer
0
Substitute 2: 4−6+2=0, so 2 is a zero of the polynomial.
Full publisher materials and answer resources
CBSE 9 Mathematics · syllabus · CBSE · 2026-27 The current official syllabus defines examinable content, internal assessment, practicals and prescribed books. Unit names in the app are a navigation index; consult this document for exclusions and assessment boundaries.
NCERT · Ganita Manjari · NCERT · 2026-27 Official book selector with chapter PDFs and complete-book download. A textbook may contain material outside the assessed syllabus; follow the linked current syllabus.
NCERT · Ganita Manjari PART-II · NCERT · 2026-27 Official book selector with chapter PDFs and complete-book download. A textbook may contain material outside the assessed syllabus; follow the linked current syllabus.
DIKSHA · curriculum learning resources · Ministry of Education / DIKSHA · Current portal Choose CBSE/NCERT, Class 9, subject and medium. This is a searchable portal, not a promise of a specific playable lesson.