# Example 4 - Chapter 11 Class 7 Exponents and Powers

Last updated at April 16, 2024 by Teachoo

Examples

Example 1

Example 2 Important

Example 3

Example 4 Important You are here

Example 5 (i)

Example 5 (ii) Important

Example 5 (iii)

Example 5 (iv) Important

Example 6

Example 7 Important

Example 8 (i) Important

Example 8 (ii)

Example 8 (iii) Important

Example 9 (i)

Example 9 (ii) Important

Example 10 Important

Example 11 (i)

Example 11 (ii)

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Example 11 (iv) Important

Example 11 (v) Important

Example 12 (i)

Example 12 (ii) Important

Example 12 (iii) Important

Example 13 (i)

Example 13 (ii) Important

Example 13 (iii)

Example 13 (iv) Important

Last updated at April 16, 2024 by Teachoo

Example 4 Expand a3 b2, a2 b3, b2 a3, b3 a2. Are they all same? a3 b2 = a3 × b2 = a × a × a × b × b a2 b3 = a2 × b3 = a × a × b × b b2 a3 = b2 × a3 = b × b × a × a × a = a × a × a × b × b b3 a2 = b3 × a2 = b × b × b × a × a = a × a × b × b × b Now, a3 b2 & b2 a3 (= a3 b2) are the same As they have same power of a & b Similarly, a2 b3 & b3 a2 (= a2 b3) are the same As they have same powers of a and b But all of them are not equal