Mock 1 Review - Algebra 2

 $52i^{71}$  

• 52i

• -52i

• 52

• -52

 $-2\sqrt{-320}$  

•  $-16i\sqrt{5}$  

•  $16i\sqrt{5}$  

•  $-8i\sqrt{20}$  

•  $-8\sqrt{20}$  

Simplify: (6 - 4i) - (3 - 12i)

• 3 - 8i

• 3 + 8i

• 9 + 8i

• 3 - 16i

Simplify: (6i)(8 + 5i)

• 30 + 48i

• 30 - 48i

• -30 + 48i

• -30 - 48i

 $\frac{8}{-3i}$  

•  $\frac{8i}{3}$  

•  $-\frac{8i}{3}$  

•  $\frac{8}{3}$  

•  $-\frac{8}{3}$  

Solve for x and y: 16 - (3y)i - 2x = 20 - 9i

• x = 2, y = 3

• x = 2, y = -3

• x = -2, y = -3

• x = -2, y = 3

Factor completely: x² + 16

• (x + 4)²

• (x - 4)²

• (x + 4i)(x - 4i)

• (x + 4)(x - 4)

Factor completely: 3x³ - 243x

• 3(x³ - 81x)

• 3x(x² - 81)

• 3x(x + 9i)(x - 9i)

• 3x(x + 9)(x - 9)

Solve for x:  $2x^2-72=0$  

• 6

•  $\pm36$  

•  $\pm6$  

•  $\pm6i$  

Solve for x: 5x² + 80 = 0

• $\pm16$

• $\pm16i$

• $\pm4$

• $\pm4i$