Muft Shiksha
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
Class 9MathematicsIntroduction to PolynomialsAlgebraic expressionsMediumLevel 24
0 reads0 ratings0 helpful

If (x=1) and (y=5), what is the value of (2x+y^2)?

Advertisement

Answer and explanation

Correct answer: 27

Substituting the given values, (2x+y^2)=2(1)+5^2=2+25=27. Hence, the correct answer is 27. A result such as 12 may come from incorrectly treating y² as 2y. In exams, evaluate powers first, then multiplication and addition.

Related tags

Algebraic ExpressionsSubstitutionExponentsEvaluation Of ExpressionsClass 9 Mathematics

Frequently asked questions

What is the correct answer to this question?

27

Why is this the correct answer?

Substituting the given values, (2x+y^2)=2(1)+5^2=2+25=27. Hence, the correct answer is 27. A result such as 12 may come from incorrectly treating y² as 2y. In exams, evaluate powers first, then multiplication and addition.

Which subject and chapter does this question cover?

This is a Class 9 Mathematics question. Chapter: Introduction to Polynomials. Topic: Algebraic expressions.

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

KEEP PRACTISING

10 more MCQs
  1. 1In the expression (3x+7), which is the variable?
  2. 2In the expression (5y-9), which is the constant term?
  3. 3What is the coefficient of a in the expression 8a?
  4. 4How many terms are there in the expression (p+q+4)?
  5. 5Which expression is a monomial?
  6. 6Which expression is a binomial?
  7. 7Which expression is a trinomial?
  8. 8What is the simplified form of (4x+3x)?
  9. 9What is the value of the expression (9y-2y)?
  10. 10What is the value of (2x+5) when (x=3)?
Advertisement