Question 733436
<pre>
(7x)<sup>2</sup>

Give the 7 and the x each an exponent of 1

(7<sup>1</sup>x<sup>1</sup>)<sup>2</sup>

Now distribute the EXPONENTS

7<sup>1·2</sup>x<sup>1·2</sup>

or

7<sup>2</sup>x<sup>2</sup>

or

49x<sup>2</sup>

Edwin</pre>