After simplifying (9x^6-9x^6+5x^2+1), what will be the degree?
Answer and explanation
Correct answer: 2
On simplification, the like terms 9x^6 and -9x^6 cancel each other. The polynomial left is 5x^2+1. The highest power of x in it is 2, so its degree is 2. Option 6 is incorrect because the x^6 term does not remain after simplification. Exam tip: Always simplify a polynomial by combining like terms before finding its degree.
Frequently asked questions
What is the correct answer to this question?
2
Why is this the correct answer?
On simplification, the like terms 9x^6 and -9x^6 cancel each other. The polynomial left is 5x^2+1. The highest power of x in it is 2, so its degree is 2. Option 6 is incorrect because the x^6 term does not remain after simplification. Exam tip: Always simplify a polynomial by combining like terms before finding its degree.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Introduction to Polynomials. Topic: Degree of a Polynomial.
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