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 x^2+12x+36 is a perfect square area model, what is the whole side?

Answer and explanation

Correct answer: x+6

The direct answer is option B, x+6. Compare the expression with the identity (p+q)^2 = p^2+2pq+q^2. Here p=x and q=6: x^2+2(x)(6)+6^2 = x^2+12x+36. Therefore x^2+12x+36 = (x+6)^2, so the side of the square is x+6. In the area model, the x^2 region is the large x-by-x square, the two cross-regions each have area 6x, and the small corner square has area 36 and side 6. Option A, x+12, would produce a middle term 24x and a final term 144. Option C, x+3, would produce 6x and 9. Option D would produce negative middle term −12x, so it belongs to a different pattern. A safe check is to halve the coefficient of x: 12 ÷ 2 = 6, and then verify that 6^2 = 36.

Related tags

Perfect-Square-TrinomialArea-ModelBinomial-SquareAlgebraic-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.