Verified Solution Mathematics Polynomials

What is the degree of the polynomial P(x) = (x² + 1)(x - 2) - (x³ + 5x)?

0 views 0 helpful Updated Jul 2, 2026
Solution ✔ Verified
  • A3
  • B2
  • C1
  • D0
Explanation

Expand (x² + 1)(x - 2) = x³ - 2x² + x - 2. Then subtract (x³ + 5x): (x³ - 2x² + x - 2) - (x³ + 5x) = -2x² - 4x - 2. The highest power of x is 2, so the degree is 2.

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