Practice Test

1. 4
2. $100 - \sqrt{2}$ $100 - \sqrt{2}$
3. $- 8$ $- 8$
4. $(- \infty, - 9) \cup (- 9, 3) \cup (3, \infty)$ $(- \infty, - 9) \cup (- 9, 3) \cup (3, \infty)$
5. $- 27 x^{3} y^{3}$ $- 27 x^{3} y^{3}$
6. $- 2 x^{2}$ $- 2 x^{2}$
7. $2 \sqrt{3 x}$ $2 \sqrt{3 x}$
8. $- \frac{1}{64}$ $- \frac{1}{64}$
9. $\frac{5 x^{5 / 2}}{y^{1 / 2}}$ $\frac{5 x^{5 / 2}}{y^{1 / 2}}$
10. $- \frac{5 + 5 \sqrt{3}}{2}$ $- \frac{5 + 5 \sqrt{3}}{2}$
11. $19 x^{2} - 18 x + 11$ $19 x^{2} - 18 x + 11$
12. $5 x^{2} - 11 x + 2$ $5 x^{2} - 11 x + 2$
13. $x^{4} + 6 x^{2} y^{2} + 9 y^{4}$ $x^{4} + 6 x^{2} y^{2} + 9 y^{4}$
14. $(x - 5) (x + 5) π$ $(x - 5) (x + 5) π$
15. $(x - 3) (x - 2)$ $(x - 3) (x - 2)$
16. ${(3 x + 2)}^{2}$ ${(3 x + 2)}^{2}$
17. $(2 x - 3) (4 x^{2} + 6 x + 9)$ $(2 x - 3) (4 x^{2} + 6 x + 9)$
18. $\frac{- 9}{(x + 2)}$ $\frac{- 9}{(x + 2)}$
19. $\frac{1}{(3 x + 1) (3 x - 1)}$ $\frac{1}{(3 x + 1) (3 x - 1)}$
20. 37

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