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

Choose the correct factorised form of \(7xy+14x\).

Answer and explanation

Correct answer: \(7x(y+2)\)

The direct answer is B: \(7x(y+2)\). Look for the greatest common factor in both terms. In \(7xy\) and \(14x\), the common numerical factor is 7 and the common variable factor is x, so the greatest common factor is \(7x\). Divide each term by \(7x\): \(7xy\div7x=y\), and \(14x
div7x=2\). Therefore \(7xy+14x=7x(y+2)\). Option A does not contain the correct common factor placement and expands to \(7y+98x\). Option C expands to \(7xy+14xy\), which incorrectly gives the second term an extra y. Option D expands to \(14xy+98x\), so both coefficients are wrong. Option B is confirmed by multiplying: \(7x
y+7x
times2=7xy+14x\). A reliable habit is to divide every original term by the factor taken outside, then multiply back to verify. Common confusion: the factor 14 is not common to the first term because \(7xy\) is not divisible by 14 as an integer coefficient.

Related tags

FactorisationCommon FactorAlgebraic ExpressionsClass 9 MathematicsMonomial FactorExploring 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.