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 the area model of a rectangle is (a+3)(a+2), what is the area of the constant part?

Answer and explanation

Correct answer: 6

The direct answer is D, 6. In the rectangle model, split the first side into a and 3, and the second side into a and 2. The region formed by the two constant pieces has dimensions 3 and 2, so its area is 3×2 = 6. Expanding confirms the result: (a+3)(a+2) = a²+2a+3a+6 = a²+5a+6. The final constant term is the number-only region. Option A, 3a, is the mixed region produced by 3×a, so it contains a and is not constant. Option B, 2a, is the other mixed region, a×2. Option C, 5a, is the combined total of the two a-terms, not one separate constant region. Option D, 6, is correct because it uses only the constant dimensions 3 and 2. A constant part contains no variable; that is the key identification rule. Memory cue: multiply the numbers at the ends of the factors to find the constant term: 3×2 = 6.

Related tags

Constant TermRectangle ModelAlgebraic IdentitiesArea ModelVisual Models Of IdentitiesExploring Algebraic IdentitiesMathematicsClass 9 Mcq

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.