24.11.2012 Views

Beginning and Intermediate Algebra - Wallace Math Courses ...

Beginning and Intermediate Algebra - Wallace Math Courses ...

Beginning and Intermediate Algebra - Wallace Math Courses ...

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

9.5 Practice - Build Quadratics from Roots<br />

From each problem, find a quadratic equation with those numbers as<br />

its solutions.<br />

1) 2, 5<br />

3) 20, 2<br />

5) 4, 4<br />

7) 0, 0<br />

9) − 4, 11<br />

11) 3 1<br />

, 4 4<br />

13) 1 1<br />

,<br />

2 3<br />

15) 3<br />

, 4 7<br />

17) − 1 5<br />

,<br />

3 6<br />

19) − 6, 1<br />

9<br />

21) ± 5<br />

23) ± 1<br />

5<br />

√<br />

25) ± 11<br />

27) ± 3<br />

√<br />

4<br />

√<br />

29) ±i 13<br />

31) 2 ± 6<br />

√<br />

33) 1 ± 3i<br />

35) 6 ±i 3<br />

√<br />

37)<br />

39)<br />

− 1 ± 6<br />

√<br />

2<br />

6 ± i 2<br />

√<br />

8<br />

351<br />

2) 3, 6<br />

4) 13, 1<br />

6) 0, 9<br />

8) − 2, − 5<br />

10) 3, − 1<br />

12) 5 5<br />

,<br />

8 7<br />

14) 1 2<br />

,<br />

2 3<br />

16) 2, 2<br />

9<br />

18) 5 1<br />

, −<br />

3 2<br />

20) − 2<br />

5 ,0<br />

22) ± 1<br />

24) ± 7<br />

√<br />

26) ± 2 3<br />

√<br />

28) ± 11i<br />

30) ± 5i 2<br />

√<br />

32) − 3 ± 2<br />

√<br />

34) − 2 ± 4i<br />

36) − 9 ±i 5<br />

√<br />

38)<br />

40)<br />

2 ± 5i<br />

3<br />

√<br />

− 2 ± i 15<br />

2

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!