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For a student wrote . What is the correct value of ?

Class 9PolynomialsPolynomials
  • A2
  • B−2
  • C8
  • D4

Step-by-Step Solution

The slip is , not +1. . Odd powers of a negative number stay negative; even powers turn positive.
Answer: B) −2

Key idea: Naming polynomials by terms and degree

By number of terms:
- **Monomial**: 1 term (e.g. )
- **Binomial**: 2 terms (e.g. )
- **Trinomial**: 3 terms (e.g. )

By degree:
- **Linear** (degree 1):
- **Quadratic** (degree 2):
- **Cubic** (degree 3):
- **Biquadratic** (degree 4):

A polynomial can fit multiple categories. is both a monomial and a cubic.

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