SOLUTION: Solution set of √y-2=-4 is {} {-2} {-4,4} {18}

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Question 1132299: Solution set of √y-2=-4 is
{}
{-2}
{-4,4}
{18}

Found 2 solutions by MathLover1, greenestamps:
Answer by MathLover1(20849)   (Show Source): You can put this solution on YOUR website!
Solution set of √y-2=-4 is
if you have:





=> A possible solution is :
{ }
Check that the solution is correct :
Original equation

Plug in 18 for y

Simplify

Solution does not check

so, no solutions exist and answer is:{}
if you have:


=>no solutions exist
=> answer:{}

Answer by greenestamps(13200)   (Show Source): You can put this solution on YOUR website!


You don't need to do any algebra to answer this question.

A square root is always 0 or positive.

This equation says the square root of an expression is negative; the solution set is the empty set.

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