Mathematics
Serena110
22

Sam decides to build a square garden. If the area of the garden is 25x2 + 30x + 9 square feet, what is the length of one side of the garden? A) (3x + 5) feet B) (3x − 5) feet C) (5x + 3) feet D) (5x − 3) feet

+2
(1) Answers
pinkponymo1

The correct answer is C. (5x+3) feet, and here is how I got it. This is the equation you need to use: (a+b)^2 = (a+b) (a+b) So, let us plug in 5x and 3 here: (5x+3)^2 = (5x+3)(5x+3) = 25x^2 + 15x + 15x + 9 = 25x^2 + 30x + 9 which is the area of the garden. 

Add answer