Solving Quadratics (All 4 Methods)

• ±81
• ±9
• ±3
• No real solution

Tags

CCSS.8.EE.A.2

• -2, 4

• -8

• ±8

• No real solution

Find the zeros of this quadratic.

• b=4/5, b=3
• b=4, b=-3
• b=1/5, b=3
• b=4/5, b=-3

Tags

CCSS.HSA-REI.B.4B

Solve 7x² = 28x

• x = 4, x = 7

• x = 0, x = 4

• x = 0, x = -4

• x = -4, x = -7

Solve:
2(x - 3)² + 1 = 9

• x = 5 and x = 1
• no real solution
• √2 + 3 and -√2 + 3
• ±√2

Tags

CCSS.HSA-REI.B.4B

Solve
8n² + 10n - 3 = 0

• n = ^-1/₈, ¹⁰/₃
• n = ⁴/₅, - 2
• n = ¹/₄, ^-3/₂
• n = 2, -12

Tags

CCSS.HSA-REI.B.4B

Solve by completing the square:
k² − 12k + 23 = 0

• {6 + √13, 6 - √13}
• {-6 + √13, -6 - √13}
• {6 + √59, 6 - √59}
• {-6 + √59, -6 - √59}

Tags

CCSS.HSA-REI.B.4B

Solve

3(x+3)²-15 = 27

• -3±√14

• -3+√14

• ±11

• ±5

• A
• B
• C
• D

Tags

CCSS.HSA-REI.B.4B

When factoring
x² - 4x + 4 = 20,
what goes in the blank?
(x - __ )² = 20

• 4
• 2
• 8
• 20

Tags

CCSS.HSA-REI.B.4B