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Intermediate Algebra – Student Workbook – Second Edition 2013

Intermediate Algebra – Student Workbook – Second Edition 2013

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Lesson 5b - Solving Quadratic Equations<br />

Practice Problems<br />

7. Solve the quadratic equations, in the complex number system. Leave your final solution in<br />

the complex form a ± bi.<br />

Quadratic Formula: x =<br />

b <br />

b<br />

2 4ac<br />

2a<br />

a) (This one is a fill in the blank)<br />

( ) √( ) ( )( )<br />

( )<br />

( ) √( ) ( )<br />

( )<br />

( ) √( )<br />

( )<br />

( ) √( )<br />

( )<br />

( ) ( )<br />

( )<br />

and<br />

( ) ( )<br />

( )<br />

( )<br />

( )<br />

( )<br />

( )<br />

and<br />

( )<br />

( )<br />

( )<br />

( )<br />

and<br />

Final solution:<br />

(Be sure to draw the graph and label the y intercept)<br />

Scottsdale Community College Page 234 <strong>Intermediate</strong> <strong>Algebra</strong>

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