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 a signed rectangle of (x−2) and (x−9) is made, what will be the constant corner?

Answer and explanation

Correct answer: 18

The correct answer is A: 18. In a rectangle formed from (x−2) and (x−9), the constant corner comes from multiplying the two constant parts, −2 and −9. Thus (−2)(−9)=18. The two negative signs cancel because the product of two negative numbers is positive. The complete expansion would be x²−9x−2x+18=x²−11x+18, and the constant term is the corner 18. Option B has the correct magnitude but the wrong sign. Options C and D come from adding or subtracting the constants rather than multiplying them. They do not represent the corner area. Memory cue: the corner of a binomial rectangle is always the product of the two constant terms; check the sign before choosing.

Related tags

Signed RectangleConstant TermBinomial MultiplicationSign RulesVisual 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.