## MP Board Class 8th Maths Solutions Chapter 12 Exponents and Powers Ex 12.1

**MP Board Class 8 Maths Chapter 12 Question 1.**

Evaluate

(i) 3^{-2}

(ii) (-4)^{-2}

(iii) \(\)

Solution:

**Practice Set 12.1 Class 8 Question 2.**

Simplify and express the result in power notation with positive exponent.

Solution:

**Exponents And Powers Class 8 Question 3.**

Find the value of

(i) (3^{0} + 4^{-1}) × 2^{2}

(ii) (2^{-1} × 4^{-1}) ÷ 2^{-2}

(iii) \(\left(\frac{1}{2}\right)^{-2}+\left(\frac{1}{3}\right)^{-2}+\left(\frac{1}{4}\right)^{-2}\)

Solution:

**MP Board Class 8 English Chapter 12 Question 4.**

Evaluate

Solution:

**MP Board Class 8 Maths Chapter 12 Factorisation Question 5.**

Find the value of m for which 5^{m} ÷ 5^{-3} = 5^{5}.

Solution:

We have, 5^{m} ÷ 5^{-3} = 5^{5}

⇒ 5^{m-(-3)} = 5^{5} [∵ a^{m} + a^{n} =a^{m + n}]

⇒ 5^{m + 3} = 5^{5}

⇒ m + 3 = 5 [∵ a^{m} = a^{n} ⇒ m = n]

⇒ m = 5 – 3 = 2

**Class 8 Chapter 12 Exercise 12.1 Question 6.**

Evaluate

Solution:

**Chapter 12 Maths Class 8 Hindi Medium Solutions Question 7.**

Simplify.

Solution: