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

What is the simplified form of ( (x+4)(x-6)-(x-4)(x+6) )?

Answer and explanation

Correct answer: \(-4x\)

\((x+4)(x-6)=x^2-2x-24\), while \((x-4)(x+6)=x^2+2x-24\). On subtracting the second expression, \(x^2-2x-24-(x^2+2x-24)=-4x\). Therefore, the correct answer is \(-4x\). The option \(4x\) results from an incorrect sign while subtracting the bracketed expression. Exam tip: when subtracting a whole expression, change the sign of every term inside its bracket.

Related tags

Algebraic IdentitiesPolynomial MultiplicationSubtraction Of PolynomialsSign RulesLinear ExpressionsExploring 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.