Answer:
A. 
B. 
Step-by-step explanation:
A. The area of the shaded region = area of the whole large square - area of the 4 smaller squares
= (5x*5x) - 4(4*4)
Area of shaded region = 
B. The expression,
, is the difference of two perfect squares, 25x² and 64. Therefore, apply the rule of factoring difference of two perfect squares.
Thus, 
Therefore, the expression of the are of the shaded region can be expressed in factored form as:

Answer:
2) -5/7
Step-by-step explanation:
= 
cross-multiply to get:
10 = -14n
-10/14 = n
n = -5/7 (simplified)
40 square units is teh correct answer
Answer: run it through an a p p called ma th way, it is the best
Step-by-step explanation: