+0  
 
0
94
2
avatar

(-a-b)^2=? (-a+b)^2=?

 Jun 18, 2020
 #1
avatar+344 
+9

(-a-b)^2=a² + 2ab + b²

 Jun 18, 2020
 #2
avatar+1130 
+3

(-a+b)^2=a^2−2ab+b^2

(-a-b)^2=a^2+b^2+2ab

 

we just used expanded form

 

since the a is a negative we do the opposite

 Jun 18, 2020
edited by jimkey17  Jun 18, 2020

29 Online Users

avatar
avatar