Answer:
PART A:
The length of each side of the square is 4a - 3
PART B:
The dimension of the rectangle is:
(3a - 5b)(3a + 5b)
Step-by-step explanation:
PART A:
Given that the area of the square is:

Factorizing this, we have:

Therefore, the length of each side is:

PART B:
Given that the area of a rectangle is:

Factorizing this, we have:
