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Mathematics 11 Online
OpenStudy (anonymous):

sqrt{9x+67}=x+5

OpenStudy (anonymous):

Is this the question? \[\sqrt{9x+67}=x+5\]

OpenStudy (anonymous):

Square both sides of the equation \[(\sqrt{9x+67})^2=(x+5)^2\]

OpenStudy (theviper):

Square both sides & solve it:)

OpenStudy (anonymous):

The squares cancel \[9x+67=x^2+10x+25\] Move all terms to one side and cancel \[0=x^2+10x-9x+25-67\]

OpenStudy (anonymous):

Are you able to take it from there @pinkwhispers80?

OpenStudy (anonymous):

\[0 =x^2+x-42 \] \[(x+7)(x-6)=0\] According to the zero factor theorem either x=6 or x=-7

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