Question 81 (f)

Express each of the following in single exponential form.
$(- 11)^{2} \times (- 2)^{2}$

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Solution

We have, $(- 11)^{2} \times (- 2)^{2} = [(- 11) \times (- 2)^{2}] [∵ a^{m} \times b^{m} = (a \times b)^{m}]$
$= 22^{2} [∵ (- 11) \times (- 2) = 22]$

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