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Mathematics 25 Online
OpenStudy (anonymous):

sqrt{?} (a+5)^2

OpenStudy (hoblos):

do u mean \[\sqrt{(a+5)^{2}}\]

OpenStudy (anonymous):

(a+5)(a-5)= simplify

OpenStudy (anonymous):

Do you mean... \[\sqrt{(a+5){^2}}\]

OpenStudy (hoblos):

if so it is +/- (a+5)

OpenStudy (anonymous):

yes i do sorry mean that hoblos

OpenStudy (anonymous):

find teh following assume that variable can represent any real number

OpenStudy (anonymous):

\[\sqrt{(a+5){^2}}=(a+5)\] The square root of a negative number does not exist; but squaring a number will always return a positive. As such, a can be any real number, or: \[a\in \mathbb{R}\]

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