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 10MathematicsPolynomialsOperations on real numbers and the laws of exponentsExpertLevel 43
0 reads0 ratings0 helpful

If (5^{x+2}-5^{x}=600), what is the value of (x)?

Advertisement

Answer and explanation

Correct answer: (2)

Here (5^{x+2}-5^{x}=25\cdot5^{x}-5^{x}=24\cdot5^{x}=600), so (5^{x}=25=5^{2}). In exams, factor out the common power.

Related tags

Exponent EquationPowersFactorization

Frequently asked questions

What is the correct answer to this question?

(2)

Why is this the correct answer?

Here (5^{x+2}-5^{x}=25\cdot5^{x}-5^{x}=24\cdot5^{x}=600), so (5^{x}=25=5^{2}). In exams, factor out the common power.

Which subject and chapter does this question cover?

This is a Class 10 Mathematics question. Chapter: Polynomials. Topic: Operations on real numbers and the laws of exponents.

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

KEEP PRACTISING

10 more MCQs
  1. 1Which option gives the correct value of 1/(√10 − 3)?
  2. 2What is the value of (2^3\cdot2^4)?
  3. 3What is the simplified form of (\frac{5^6}{5^2})?
  4. 4What is the simplified form of ((3^2)^4)?
  5. 5If \(a\ne0\), what is the value of \(a^0\)?
  6. 6What is (10^{-2}) equal to?
  7. 7What is the simplified form of ((2\cdot5)^3)?
  8. 8What is the value of \(\left(\frac{3}{4}\right)^2\)?
  9. 9Which of the following expressions is equal to \(7^2\cdot 7^3\)?
  10. 10What is the simplified form of (9^5\div9^3)?
Advertisement