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
1 reads0 ratings0 helpful

A rectangle model has four cells 8x², 12x, 10x, and 15. Which sides are possible?

Answer and explanation

Correct answer: (2x+3) and (4x+5); the four grid cells match

Correct answer: C. In a rectangle grid, multiply every part of one side by every part of the other side. For (2x+3)(4x+5), the four cells are (2x)(4x)=8x², (2x)(5)=10x, (3)(4x)=12x, and 3·5=15. These are exactly the four given cells, so the sides are possible. Option A produces several unmatched terms and does not give the stated grid. Option B produces 8x², 6x, 20x, and 15; its cross cells are wrong. Option D gives 8x², 4x, 30x, and 15, so its linear cells do not match. The order of the two middle cells is irrelevant because addition is commutative, but their values must be 10x and 12x.

Related tags

Grid ModelArea CellsFactorisationRectangle IdentityVisual 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.