CTET 2 Math and Science 5 Jan 2022 Paper

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Question : 51 of 150

Marks: +1, -0

It is observed that learners easily grasp the identity (a + b)2, while they find it difficult to use the identity (a + b)3. What among the following may be the most appropriate explanation for this?

Learners do not pay attention in the class
The identity (a + b)3 is more difficult to arrive at
They have not grasped the concept of multiplication of algebraic expressions
They find the identity (a + b)3 as less useful

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