+0  
 
0
140
1
avatar

Does anyone know what x2 is in this problem and what it does?

 

 

x2+20=84

 Apr 24, 2021
 #1
avatar+66 
+1

What does it mean x2?

\(x^2\) or \(2*x\)

 

If x2 = \(x^2 \) 
x^2+20=84
x^2=64
x=sqrt(64)
x=8

 

If x2 = \(2*x\)

2x+20=84

2x=64

x=32

 Apr 24, 2021

44 Online Users

avatar