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Multiplying two numbers with Same Power
Last updated at August 18, 2025 by Teachoo
Multiplying & Dividing two numbers with Same Power
Class 8 (Ganita Prakash & Old NCERT)
Chapter 2 Class 8 - Power Play (Ganita Prakash)
- Basic Concepts & Formulas
- Introduction
- Exponential Notation and Operations
- Figure it out - Page 22, 23
- The Stones that Shine ...
- Formulas of Exponents
- Magical Pond
-
Multiplying & Dividing two numbers with Same Power
- Combinations
- The Other Side of Powers
- Power Lines
- Powers of 10
- Scientific Notation
- Did you ever Wonder..
- Linear Growth vs Exponential Growth
- Getting a sense of Large Numbers
- A Pinch of History
- Figure it out - Page 44, 45
Transcript
Multiplying two numbers with Same PowerOur formula is am × bm = (a × b)m Suppose we have 22 × 32 = (2 × 2) × (3 × 3) = (2 × 3) × (2 × 3) = 6 × 6 = 62 Thus, 22 × 32 = (2 × 3)2 = 62 Similarly, 53 × 73 = (5 × 5 × 5) × (7 × 7 × 7) = (5 × 7) × (5 × 7) × (5 × 7) = 35 × 35 × 35 = 353 ∴ 53 × 73 = (5 × 7)3 = 353
