बीजगणितीय व्यंजक

An algebraic expression is an expression built up from constants, variables, and the arithmetic operations of addition, subtraction, multiplication, and division.

A variable is denoted by 'x,y,z…' and it can hold many values whereas a constant has a fixed value. The combination of variables and constants makes up an algebraic expression. You have already lean how to form algebraic expressions in class 6th, let's check how much you remember.

When terms have the same algebraic factors, they are like terms. When terms have different algebraic factors, they are unlike terms. Here we will learn how to write expressions and how to add expressions. While adding and subtracting expressions, first look for like terms and add them; then handle unlike terms. Let's understand this better!

एक बीजीय व्यंजक का मान, उस व्यंजक के चरों के मान पर निर्भर करता है। अनेक परिस्थितियों में हमें व्यंजक का मान निकालने की आवश्यकता होती है, जैसे कि जब हमें यह जाँचना हो की कोई चर एक समीकरण को सत्य बनता है या नहीं| आइए विस्तार से देखें इसका क्या मतलब है!