i don't understand how to do this one question and i've tried so many different approaches to it.

Algebra
Tutor: None Selected Time limit: 1 Day

a square has a side length of 3x and an area of 324 inches squared. What is the value of x?

May 26th, 2015

square has 4 sides and each side is 3x 

area of a square is side ^2 

324= (3x)^2 

324= 9x^2 

324/9 = x^2 

36 = x^2 

square root of 36= x 

6=x

May 26th, 2015

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May 26th, 2015
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