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Mathematics 20 Online
OpenStudy (anonymous):

√X+2+4=x

OpenStudy (anonymous):

what's under the radical?

OpenStudy (anonymous):

Everything up to 2

OpenStudy (anonymous):

So the x and the 2

OpenStudy (anonymous):

subtract the 4 over to the right side

OpenStudy (anonymous):

thus you'll have sqrt(x+2)=x-4

OpenStudy (anonymous):

Right got that

OpenStudy (anonymous):

square both sides: (x+2)^2=(x+4)^2

OpenStudy (anonymous):

Ok

OpenStudy (anonymous):

x^2+4x+4=x^2+8x+16

OpenStudy (anonymous):

Ok

OpenStudy (anonymous):

simplify to get one equation equal to 0

OpenStudy (anonymous):

X=-3 b

OpenStudy (anonymous):

?*

OpenStudy (anonymous):

4x+12=0 4x=-12 x=-3

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