Mathematics
Algebraic expressions
बीजीय व्यंजक
Algebraic Expressions introduces Class 9 Mathematics students to the language used for representing numbers and relationships with variables. As part of the chapter Introduction to Polynomials, students learn to identify terms, coefficients, constants, and variables; distinguish like and unlike terms; and simplify expressions by combining like terms. They also practise substituting values to evaluate expressions and applying addition, subtraction, multiplication, and division carefully, building a foundation for understanding polynomials and solving algebraic problems.
Practice questions
What is obtained by expanding (2(x+3))?Which is the correct expanded form of (3(y-2))?Which expression represents (4) more than (x)?Which expression represents twice of (n)?Which expression represents (5) less than (t)?Which expression represents the sum of (x) and (6)?Which expression represents the product of (m) and (3)?If (x=1) and (y=2), what is the value of (x+y)?If (x=6), what is the value of (x^2)?What is the numerical coefficient in (2p^2)?Which expression is equivalent to 2a + 3b?What is the simple form of writing (5(x))?Which term has the variable part in (ab+2)?Which expression represents half of (r)?What is the coefficient of (xy) in the expression (-8xy)?Which of the following expressions is a polynomial?Which expression represents subtracting (2) from three times a number (r)?How many terms are there in (2a^2+3a-5+7b)?Which expression is equivalent to (5x+2x-4)?Which is the constant term in (6m^2-9)?