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What is the simplified form of \(1\cdot x\)?
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Answer and explanation
Correct answer: x
1 is the multiplicative identity. Hence, multiplying any variable by 1 leaves it unchanged: \(1\cdot x=x\). The close distractor \(x+1\) is wrong because it adds 1 rather than multiplying by 1. Exam tip: multiplying an expression by 1 does not change it.
Frequently asked questions
What is the correct answer to this question?
x
Why is this the correct answer?
1 is the multiplicative identity. Hence, multiplying any variable by 1 leaves it unchanged: \(1\cdot x=x\). The close distractor \(x+1\) is wrong because it adds 1 rather than multiplying by 1. Exam tip: multiplying an expression by 1 does not change it.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Introduction to Polynomials. Topic: Algebraic expressions.
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