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An edge of a square can be expressed as $4x-15$ meters or as $20-3x$ meters. What is its area in square meters?

 Mar 25, 2020
 #1
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An edge of a square can be expressed as $4x-15$ meters or as $20-3x$ meters. What is its area in square meters?

 

Hello Paresh!

 

\((4x-15)^2=(20-3x)^2\\ 4x-15=20-3x\\ 7x=35 \)

\(x=5 \)

 

A=(4*5-15)*(20-3*5)=5*5

A=25m²

 

The area of the square it 25m²

laugh  !

 Mar 25, 2020
edited by asinus  Mar 25, 2020
 #2
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wow thx

Paresh  Mar 25, 2020
 #3
avatar+9778 
+1

Thanks for your thx!

laugh  !

asinus  Mar 26, 2020

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