Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

If (w=3), what will be the degree of ((w-3)x^8+(w+1)x^5-2x+6)?

Answer and explanation

Correct answer: (5)

The direct answer is option B, 5. The degree of a polynomial is the greatest exponent of the variable whose coefficient is not zero. Substitute \(w=3\): \((w-3)x^8=(3-3)x^8=0x^8\), so the eighth-degree term disappears. Also, \((w+1)x^5=(3+1)x^5=4x^5\). The expression becomes \(4x^5-2x+6\), whose highest nonzero power is 5. Option A, 8, is wrong because the coefficient of \(x^8\) becomes zero. Option B, 5, is correct. Option C, 1, ignores the nonzero \(x^5\) term and notices only the linear term. Option D, 0, would apply only to a nonzero constant polynomial, not this expression. Memory cue: a zero coefficient removes a term before finding degree.

Related tags

PolynomialParameter SubstitutionDegree

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.