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Mathematics 18 Online
OpenStudy (anonymous):

√2x+3=x A. {-1} B. {3} C. {-1, 3} HELP

OpenStudy (anonymous):

square both sides and solve the quadratic.. but 1 root will not satisfy since u have squared.

OpenStudy (anonymous):

I tried

OpenStudy (anonymous):

its A

OpenStudy (anonymous):

Thank you soooo much Jeff!

OpenStudy (anonymous):

no problemo

OpenStudy (anonymous):

@jeffreyfernando3 Its 3 actually ..sqrt gives a positive value

OpenStudy (anonymous):

Huh

OpenStudy (anonymous):

but i am pretty sure its x-1

OpenStudy (anonymous):

Could it possibly be C -1,3

OpenStudy (anonymous):

see if u put x= -1 u get sqrt 1 = -1 ..but sqrt is defined to give positive value.. sqrt A= |A|

OpenStudy (anonymous):

ok ok what?

OpenStudy (anonymous):

sqrt A = modulus of A

OpenStudy (anonymous):

yeah i probably go with anthony

OpenStudy (anonymous):

yeah its 3

OpenStudy (anonymous):

ok

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