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Unformatted text preview: substituted in the original equation, gives a false solution. Solve and check: 1. 7 4 5 = + x 2. 6 1 3 =+ w 3. 6 2 8 4 = +x 4. x x=4 4 48 4 5. 5 3=y y 6 . ( 29 1 3 3 4 X + = 7. 3 2 21 4 + = + y y 8. 4 2 9 1 x x ++ = 9. 10 3 x x + + = 10. x 4 – 8x 2 + 12 = 0 11. 2 2 2 ( 2 ) 11( 2 ) 24 y y y y+ = 12. 12 20 a a+ = 13. 2 1 2 7 15 y y+= 14. x x= 4 1 3 48...
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 Fall '08
 Staff
 Radicals, Equations, Harshad number, extraneous solutions, radical expressions, usual manner, EQUATIONS QUADRATIC

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