Can someone please help me with this real quick

Question

anonymous · Answer

Sam decides to build a square garden. If the area of the garden is 4x2 − 20x + 25 square feet, what is the length of one side of the garden?
 	
	(5x + 2) feet
	(5x − 2) feet
	(2x + 5) feet
	(2x − 5) feet

anonymous · Answer

Key word here is Square. What do the sides of squares have in common?

anonymous · Answer

They are all the same length

anonymous · Answer

Awesome. And how do we find the area of a square?

anonymous · Answer

Square on of the sides

anonymous · Answer

ok i see

anonymous · Answer

So it is the last one?

anonymous · Answer

So with your first option. It is saying if one side is (5x+2) feet. Then we need to multiply (5x+2) times itself (5x+2) and see if it comes out to be 4x^2-20x+25. And just do the same with the others until you get a match!

Hint: There is a (-) in 4x^2-20x+25

This means we cannot have a + sign inside one of the sides.

anonymous · Answer

(5x+2)(5x+2) cannot be right. Because we have a (-) inside the 4x^2-20x+25. 

Let's rule out A.

anonymous · Answer

B or D

anonymous · Answer

yeah i saw that that is what made me try the last one and it is the answer thank you for your help

anonymous · Answer

Absolutely, np. =0)