If square root of 5 - x = 4 , then x= Is it 11 or -11 Please show your work. Here's mine Square root of 5 - x =4 (Square root of 5 - x)^2 = (4)^2 5 - x =16, x = -5. -5, × = ___________ X = 11

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asked Feb 17, 2017 76.0k views

3 votes

If square root of 5 - x = 4 , then x=

Is it 11 or -11
Please show your work.
Here's mine
Square root of 5 - x =4
(Square root of 5 - x)^2 = (4)^2
5 - x =16, x =
-5. -5, × =
___________
X = 11

Mathematics
high-school

Jack Dre asked

by Jack Dre

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1 Answer

4 votes

Hello,

√(5-x)=4
==>5-x=16
==>x=-11

Proof:

√(5-(-11))=√16=4

Ryna answered Feb 22, 2017

by Ryna

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