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1. Chapter 12 Class 7 Algebraic Expressions
2. Concept wise
3. Like and unlike terms

Transcript

Ex 12.1, 6 State whether a given pair of terms is of like or unlike terms. (i) 1, 100 1, 100 Since 1 and 100 have no variable. โด They are like terms Ex 12.1, 6 State whether a given pair of terms is of like or unlike terms. (ii) โ7x, 5/2x โ7x, 5/2 ๐ฅ โ7x has variable ๐ฅ 5/2 ๐ฅ has variable ๐ฅ โ7๐ฅ and 5/2 ๐ฅ have same variable x โด They are like terms. Ex 12.1, 6 State whether a given pair of terms is of like or unlike terms. (iii) โ29x, โ29y โ29x, โ29y โ29x has variable x โ29y has variable y โ29x and โ29y have different variables โด They are unlike terms. Ex 12.1, 6 State whether a given pair of terms is of like or unlike terms. (iv) 14xy, 42yx 14xy, 42yx 14xy has variable xy 42yx has variable yx i.e. xy(โด yx = xy) So, 14xy and 42yx have same variable xy โด They are like terms Ex 12.1, 6 State whether a given pair of terms is of like or unlike terms. (v) 4m2p, 4mp2 4m2p, 4mp2 4m2p has variable m2p 4mp2 has variable mp2 4m2p and 4mp2 have different variables โด They are unlike terms. Ex 12.1, 6 State whether a given pair of terms is of like or unlike terms. (vi) 12xz, 12x2z2 12xz, 12x2z2 12xz has variable xz 12x2z2 has variable x2z2 12xz and 12x2z2 have different variables โด They are unlike terms.

Like and unlike terms