SOLUTION: HELP!!! Radicals!!!! what is 2 sq root x-1 + 2 sq root x+4= 5. Please explain steps

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Question 235956: HELP!!! Radicals!!!!

what is 2 sq root x-1 + 2 sq root x+4= 5. Please explain steps
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


I'm guessing you mean:



Square both sides: (use the FOIL process on the LHS)



Collect like terms and leave the radical term in the LHS and everything else in the RHS:



(Verification of that last step is left as an exercise for the student)

Square both sides again



Expand the binomial multiplication in the LHS:



And collect terms:





Check:



You can do the arithmetic to see if it is right or not.

John