Math 2 Module 4 Topic 1B Test Part A

Simplify:

( 10 + 15i ) - ( 48 - 30i )

• 58 - 45i

• 58 - 15i

• -38 - 15i

• -38 + 45i

Simplify:

( 1 - 3i ) ( 2 + 5i )

• 17 - 11i

• 3 + 2i

• 17 - i

• 17 + i

Factor completely:

3x² + 18x +15

Hint: Factor GCF first.

• 3 ( x² + 6x + 5 )

• ( x + 5 ) ( x + 1 )

• 3 ( x + 5 ) ( x + 1 )

• Prime

Factor completely:

x² - 16x + 48

• ( x - 12 ) ( x - 4 )

• ( x + 6 ) ( x - 8 )

• ( x + 12 ) ( x - 4 )

• ( x -16 ) ( x - 3 )

• prime

Solve by factoring:

x² + 7x + 12 = 0

• x = -2, x = -10

• x = -3, x = -4

• x = -4, x = -5

• x = -4, x = -6

Solve for x:

2x² - 3x - 2 = 0

• x = 1, x = -1

• x = -1/2, x = 2

• x = 1/2, x = 2

• x = 1/2, x = 1

Solve by completing the square:

x² + 4x - 16 = 0

• 
• 
• 
• 

Find the missing value "c" to create a perfect square trinomial:
x² – 8x  + ___ 

• -4
• 16
• 4
• 8

Given the perfect square trinomial, identify the equivalent expression

x² - 18x + 81

• ( x - 18 )²

• ( x - 9 )²

• ( x + 81 )²

• ( x + 9 )²

Solve for x:

x² + 36 = 0

• x = ±6

• x = 6i

• x = -6

• x = ±6i