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

A rectangle has parts \(x^2\), \(5x\), \(x\), and \(5\). Which multiplication does it show?

Answer and explanation

Correct answer: \((x+5)(x+1)\)

The direct answer is option B. In a rectangle model, each small area comes from multiplying one segment on one side by one segment on the other side. The four regions can be identified as \(x\cdot x=x^2\), \(x
e5=5x\), \(1
e x=x\), and \(1
e5=5\). Thus the two complete side lengths are \(x+5\) and \(x+1\), giving \((x+5)(x+1)\). Its expansion is \(x^2+5x+x+5=x^2+6x+5\), exactly the sum of the four parts. Option A would create \(x^2+10x+25\). Option C creates negative mixed terms. Option D uses side segments 6 and 5 and gives different regions. Memory cue: read the two outer side labels, not just one interior piece.

Related tags

Rectangle MultiplicationArea ModelFactorisationAlgebra TilesVisual 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.