8.6 Radical Equations - the original equation, gives a...

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8.6 Solving Equations  To solve equations involving radical expressions, isolate the radical on one side; then raise both  sides of the equation to a power equal to the root index of the radical.  This will remove the radical,  and the equation can  be  solved  in  the  usual manner.   However, it  is  important to  check for  extraneous solutions.  An extraneous solution is one that is solved correctly but, when substituted in 
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Unformatted text preview: the original equation, gives a false or undefined solution. Solve and check: 1. 7 4 5 = + x 2. 5 2 3-= + x 3. 6 2 8 4 = +-x 4. 6 1 3 =-+ w 5. 5 3-=-y y 6 . 3 2 21 4 + = + y y 7. 4 3 3 = + x 8. 5 3 6 3 x-= 9. 10 4 3 7 3 =-+ x 10. 2 7 3 12-=-t t 11. 4 2 9 1 +-+ = -x x...
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This note was uploaded on 01/04/2012 for the course MATH 1033 taught by Professor Patriciabishop during the Fall '11 term at Miami Dade College, Miami.

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8.6 Radical Equations - the original equation, gives a...

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