Find the value of m for which 5ᵐ÷5⁻⁻³=5⁵

5ᵐ÷5⁻³=5⁵
⇒ 5ᵐ⁻(⁻³)= 5⁵ [∵aᵐ÷aₙ=aᵐ⁻ᵐ]
⇒ 5ᵐ⁺³ =5⁵
Comparing exponents both sides, we get
⇒ m+3=5
⇒ m=5-3
⇒ m=2

Class 8 Maths Chapter 11 Exercise 12.1 Solution in Video

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