Question 81 (c)

Express each of the following in single exponential form.
$5^{2} \times 7^{2}$

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Solution

We have, $5^{2} \times 7^{2} = (5 \times 7^{2}) [∵ a^{m} \times b^{m} = (a \times b)^{m}]$
$= 35^{2}$

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Question 81 (c) Express each of the following in single exponential form. 52×72

We have, 52×72=(5×72) [∵ am×bm=(a×b)m] =352

Question 81 (c)

Express each of the following in single exponential form.
$5^{2} \times 7^{2}$

We have, $5^{2} \times 7^{2} = (5 \times 7^{2}) [∵ a^{m} \times b^{m} = (a \times b)^{m}]$
$= 35^{2}$