# Ex 12.1, 6 - Chapter 12 Class 7 Algebraic Expressions

Last updated at Dec. 21, 2018 by Teachoo

Last updated at Dec. 21, 2018 by Teachoo

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. โด They are like terms Ex 12.1, 6 State whether a given pair of terms is of like or unlike terms. (ii) โ7x, 5/2x โ7x, 5/2 ๐ฅ โ7x has variable ๐ฅ 5/2 ๐ฅ has variable ๐ฅ โ7๐ฅ and 5/2 ๐ฅ have same variable x โด They are like terms. Ex 12.1, 6 State whether a given pair of terms is of like or unlike terms. (iii) โ29x, โ29y โ29x, โ29y โ29x has variable x โ29y has variable y โ29x and โ29y have different variables โด 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(โด yx = xy) So, 14xy and 42yx have same variable xy โด 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 โด 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 โด 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 10 years. He provides courses for Maths and Science at Teachoo.