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

What will be the constant term of ((x-7)(x+3))?

Answer and explanation

Correct answer: (-21)

The direct answer is D: the constant term is \(-21\). Expand only as much as needed: \( (x-7)(x+3)=x^2+3x-7x-21=x^2-4x-21\). The constant term is the term without the variable, so it is \(-21\). An even quicker method is to multiply the constant numbers in the two factors: \((-7)(3)=-21\). Option A, 21, loses the negative sign. Option B, 4, is related to the coefficient of x after combining \(3x-7x\), but it is not the constant term and the coefficient is actually \(-4\). Option C, \(-4\), is the coefficient of x, not the constant term. Option D is correct because it is the product of the two constant parts. Memory cue: in a product of two linear factors, the constant term comes from multiplying the two numbers without the variable.

Related tags

Constant TermBinomial ProductQuadratic

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.