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What is the constant term of ( (4x-1)^2 )?
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Answer and explanation
Correct answer: 1
Using a^2-2ab+b^2 with a=4x and b=1,
(4x-1)^2=16x^2-8x+1. The term without x is called the constant term, so it is 1. The term -8x is a linear term, not a constant term. Exam tip: in the square of a binomial, the constant term is the square of its constant part.
Frequently asked questions
What is the correct answer to this question?
1
Why is this the correct answer?
Using a^2-2ab+b^2 with a=4x and b=1,
(4x-1)^2=16x^2-8x+1. The term without x is called the constant term, so it is 1. The term -8x is a linear term, not a constant term. Exam tip: in the square of a binomial, the constant term is the square of its constant part.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Exploring Algebraic Identities. Topic: Algebraic identities.
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