Solving Quadratic Functions

12.  Solve using any method. 
(x - 2 )² = 49

• 5, 9
• ^{7, -7}
• 9, -5
• ^{9, -9}

Tags

CCSS.HSA-REI.B.4B

Solve by taking the square root:
2(x - 3)² - 14 = 18

• 1, 7
• -1, 7
• -1, -7
• 1, -7

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.2

CCSS.HSA.REI.B.4

(x + 1) ² = 25

• ± 5
• 4  or  -6
• -4  or  6
• ± 4

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

(10+3i) - (2-9i)

• 20-27i
• 12-7i
• 8+12i
• 20-27i²

Tags

CCSS.HSA.APR.A.1

Which of the following is equivalent to

(5-3i)+(-6+2i)?

• -1-5i

• -1-i

• 11-i

• -30-6i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

What is the conjugate of -1 + 2i?

• 1 + 2i

• 1 - 2i

• -1 - 2i

• -1 + 2i

Tags

CCSS.HSN.CN.A.3

(3-i)(4+2i)

• 10+2i
• 14+2i
• 14-i
• 10+10i

What is the first step to solving THIS equation by completing the square?
a² + 10a + 21 = 0

• Set the equation equal to zero
• Divide 10 by 2 and add the result to both sides
• Add a² and 10a together
• Subtract the 21

Tags

CCSS.HSA-REI.B.4B

Solve the following equation by completing the square:
n² = 18n + 40

• {11 and -11}
• {16 and 2}
• {20 and -2}
• {10 and -4}

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:  2x²+ 7x + 6 = 0

• x= 3/2 and x = 2
• x = -3/2 and x = -2
• x = 6 and x = 7
• x = -6 and x = -7

Tags

CCSS.HSA-REI.B.4B