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  1. Chapter 12 Class 7 Algebraic Expressions
  2. Serial order wise

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. โˆด 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 โˆ’7x has variable ๐‘ฅ 5/2 ๐‘ฅ has variable ๐‘ฅ โˆ’7๐‘ฅ and 5/2 ๐‘ฅ have same variable x โˆด 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 โˆด 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(โˆด yx = xy) So, 14xy and 42yx have same variable xy โˆด 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 โˆด 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 โˆด They are unlike terms.

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.