### Class 10 Maths Chapter 3

Pair of linear equations in two variables. Geometric representation of different possibilities of solutions/inconsistency. Algebraic conditions for number of solutions. Solution of pair of linear equations in two variables algebraically – by substitution, by elimination and by cross multiplication. Simple situational problems must be included. Simple problems on equations reducible to linear equations may be included.

### Class 10 Maths Chapter 4

Standard form of a quadratic equation ax^2 + bx + c = 0, (a ≠ 0) . Solution of quadratic equations
(only real roots) by factorization and by completing the square, i.e., by using quadratic formula. Relationship between discriminant and nature of roots. Problems related to day-to-day activities to be incorporated.