SOLUTION: Respected sir, plz help me to solve perimeter problem. 1] The area of a square garden is A square feet and the perimeter is P feet.If A=2P+9,what is the perimeter of the garden

Algebra ->  Points-lines-and-rays -> SOLUTION: Respected sir, plz help me to solve perimeter problem. 1] The area of a square garden is A square feet and the perimeter is P feet.If A=2P+9,what is the perimeter of the garden      Log On


   

Question 229017: Respected sir,
plz help me to solve perimeter problem.
1] The area of a square garden is A square feet and the perimeter is P feet.If A=2P+9,what is the perimeter of the garden,in feet?
waiting for yur reply.
thank u.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
A=2P+9
X^2=A
P=4X
REPLACE A WITH X^2 & REPLACE P WITH 4X & SOLVE FOR X THE SIDE OF THE SQUARE.
X^2=2*4X+9
X^2=8X+9
X^2-8X-9=0
(X-9)(X+1)=0
X-9=0
X=9 ANS FOR THE SIDE OF THE SQUARE.
PROOF:
9^2=2*4*9+9
81=72+9
81=81