Perimeter of a square: side length * 4, since squares have equal side lengths
Take 2x - 3 for the side length and plug it into the formula.
(2x - 3) * 4 can be rewritten as 4(2x - 3)
Distribute 4 inside the parentheses.
8x - 12 = perimeter of the square
Answer:
A) 
B) 
Step-by-step explanation:
A) You can add these expression because they contain the same square root:

B) Same as above:

This what you gotta do 1+1=2 you get it