if A= 4x^2
then x = sq root (A/4) = (sq root A)/2... 3rd option
Answer: 
Step-by-step explanation:
1. The formula for calculate th area of a square is shown below:
Where s is the side of the square.
2. Therefore, if the square tabletop has side lengths of (4x-8) units you have:
3. By definition, the square of a binomial is always a trinomial:
4. Then, you obtain:
With this given information that 8 filters = $39.92. What you can do is divide $39.92 by 8 and get the individual price of 1 filter. So, $39.92/8 = $4.99 (price of 1 filter). The question is asking for the cost of 6 filters so you can multiply $4.99 with 6 filters and get $29.94. The answer is $29.94 for 6 filters.
51 = 3 * 17, sum of 20, no good.
<span>52 = 2 * 2 * 13, sum of 17, no good. </span>
<span>54 = 2 * 3 * 3 *3, sum of 11. </span>
<span>The answer is 54. If you need more help, let me know.</span>
