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4
avatar+87 

Solve for c in (c - 3)^2 = 100.

 May 4, 2020

Best Answer 

 #3
avatar+930 
+2

hugo, you are also missing the negative solution... (-10)^2 = 100 and (10)^2 = 100. So if c - 3 = -10, then c can also equal -7.

 May 4, 2020
 #1
avatar+1498 
+1

Take square root on both sides giving 

 

c-3 = 10

 

c = 10+3 = 13.

 

Ask if you don't understand anything :)

 May 4, 2020
 #2
avatar+87 
+1

It said it was wrong...

 May 4, 2020
 #3
avatar+930 
+2
Best Answer

hugo, you are also missing the negative solution... (-10)^2 = 100 and (10)^2 = 100. So if c - 3 = -10, then c can also equal -7.

HELPMEEEEEEEEEEEEE May 4, 2020
 #4
avatar+87 
+1

Thanks!

 May 4, 2020

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