State True or False and give reasons for your answer. (i) 7x2 and 2x

1.	State True or False and give reasons for your answer. (i) 7x2 and 2x are unlike terms.(ii) pq2 arid – 4pq2 are like terms.(iii) xy, – 12x2 y and 5xy2 are like terms.
Answer» i) True. 7x² and 2x have different algebraic factors and terms contain variables with different exponents. ii) True. pq² and – 4pq² are contain variables with same exponents. So, they are like terms. iii) False. xy, – 12x² y and 5xy² are contain variables with different exponents. So, they are unlike terms.

State True or False and give reasons for your answer. (i) 7x2 and 2x are unlike terms.(ii) pq2 arid – 4pq2 are like terms.(iii) xy, – 12x2 y and 5xy2 are like terms.

Answer»

i) True. 7x² and 2x have different algebraic factors and terms contain variables with different exponents.

ii) True. pq² and – 4pq² are contain variables with same exponents. So, they are like terms.

iii) False. xy, – 12x² y and 5xy² are contain variables with different exponents. So, they are unlike terms.