SOLUTION: how to solve the square root of y+3 = y-3
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Question 138197This question is from textbook Intermediate Algebra
: how to solve the square root of y+3 = y-3
This question is from textbook Intermediate Algebra
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Square both sides (since we are squaring the equation, we have to remember to check for extraneous roots at the end)
The quadratic factors because and
Using the zero product rule:
=>
or
=>
Check for extraneous roots:
True
(radical sign means the positive square root by convention)
So is an extraneous root.
The solution set is {6}
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