For this question it is the difference of two perfect squares. This means your final answer will be (2x - 5)(2x + 5). This answer is not listed so it would be none of the above.
After review, B technically works because it is the difference of two perfect squares. This allows you to take the square root of each term while ignoring the sign and then place that back in with the original sign.
14. B (4, -2)
15. I am not exactly sure about this one but I would say either A or B.
X should be 7 after doing all the calculation.
Associative property of multiplication which states :
(a * b) * c = a * (b * c)
