I Have No Clue What This Is?
The Area Of A Square Is Represented By (9z^2-12z+4)ft^2 . Which Expression Represents The Perimeter Of The Square?.
A.(3z-2)ft B.(3z+2)ft C.(6z-4)ft D.(12z-8)ft ?

Question

I Have No Clue What This Is?
 The Area Of A Square Is Represented By (9z^2-12z+4)ft^2 . Which Expression Represents The Perimeter Of The Square?. 
   A.(3z-2)ft   B.(3z+2)ft  C.(6z-4)ft  D.(12z-8)ft ?

anonymous · Answer

it is a weird way to ask the question
"what expression squared gives $9z^2-12z+4$ ?"

anonymous · Answer

the are of a square is the square of the length of the side
so for example if the are is $25$ then the length of the side is $5$ because $5^2=25$
so really what they are after is 
do you recognize $9z^2-12z+4$  as a perfect square ?

anonymous · Answer

*area

anonymous · Answer

@satellite73 Umm IDK? Is So Confusing!!

anonymous · Answer

So The Area Is The Whole Problem?.

anonymous · Answer

don't think very hard
if you have $9z^2-12z+4=(\text{something})^2$ it should be more or less clear what the "something" is

anonymous · Answer

the only way $9x^2-12x+4$ will be a perfect square, is if it is the square of $3z-2$

anonymous · Answer

that is, check that $(3z-2)^2=9z^2-12z+4$

anonymous · Answer

that means the length of the side is $3z-2$ and so the perimeter is 4 times that, or 
$$4(3z-2)$$

anonymous · Answer

THANK Your A Real BIG Help! ((:

anonymous · Answer

yw