Math 2 U6 L2 - Solve quadratics (square roots/complete squar

Write the following quadratic expression in completed square form...

x² + 4x + 10

• (x + 4)² + 6

• (x + 2)² + 6

• (x + 4)² - 6

• (x + 2)² - 6

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Solve by taking square roots:
a² + 9 = 9

• no solution
• a = 0
• a = 3 or -3
• a = 18

Tags

CCSS.HSA.REI.A.2

CCSS.HSA.REI.B.4

Solve by taking the square root:

x² = 49

• -7

• 7

• 49

• ±7

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

Solve by taking square roots:
k² - 6 = 43

• k = √37
• k = 37 or - 37
• k = 7, k = -7
• no solution

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.A.2

CCSS.HSA.REI.B.4

Solve by taking the square root:

4x² = 100

• ±10

• ±25

• ±5

• 5

Tags

CCSS.HSA.REI.A.2

CCSS.HSA.REI.B.4

Solve by taking square roots:
5b² - 4 = 41

• b = 9, b = -9
• b = 3, b = -3
• b = 8, b = -8
• no solutionb

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.4

Solve by taking the Square Root:

16a² - 9 = 0

• a = ± ³/₄

• a = ± ⁴/₃

• a = ± ⁹/₁₆

• a = ± ¹⁶/₉

Tags

CCSS.HSA.REI.B.4

Solve for x by taking the Square Root:

(x+6)² = 49

• x = 7 and 12

• x = ±7

• x = 1 and -13

• x = 43 and -55

Tags

CCSS.HSA.REI.A.2

CCSS.HSA.REI.B.4

What do you do to the b value to correctly complete the square?

• square it
• divide it by 2 and square the result
• divide it by 2 and take the square root of the result
• divide it by 2 only

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Create a Perfect Square Trinomial (find "c"):

x² + 6x + ___

• 6

• -6

• 9

• -9

Tags

CCSS.HSA.SSE.A.2